# Vostok - Isotope and Gas Data and Temperature Reconstruction
#----------------------------------------------------------------------- 
#                World Data Service for Paleoclimatology, Boulder 
#                                  and 
#                     NOAA Paleoclimatology Program 
#             National Centers for Environmental Information (NCEI)
#----------------------------------------------------------------------- 
# Template Version 4.0
# Encoding: UTF-8
# NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. 
#
# Description/Documentation lines begin with #
# Data lines have no #
#
# NOAA_Landing_Page:  https://www.ncei.noaa.gov/access/paleo-search/study/2453
#   Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata.
#
# Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-icecore-2453.json
#   Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata.
#
# Data_Type: Ice cores
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# Dataset_DOI: 10.25921/kcry-ae86
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# Science_Keywords: Air Temperature Reconstruction 
#--------------------
# Resource_Links
#   
# Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/nanat-noaa.txt
#   Data_Download_Description: NOAA Template File; Sodium Data
#
#--------------------
# Contribution_Date
#    Date: 2001-11-01
#--------------------
# File_Last_Modified_Date
#     Date: 2022-07-28
#--------------------
# Title
#   Study_Name: Vostok - Isotope and Gas Data and Temperature Reconstruction
#--------------------
# Investigators
#   Investigators: Petit, J.-R.; Jouzel, J.; Raynaud, D.; Barkov, N.I.; Barnola, J.M.; Basile, I.; Bender, M.L.; Chappellaz, J.A.; Davis, M.; Delaygue, G.; Delmotte, M.; Kotlyakov, V.M.; Legrand, M.; Lipenkov, V.Y.; Lorius, C.; Pépin, L.; Ritz, C.; Saltzman, E.S.; Stievenard, M.
#--------------------
# Description_Notes_and_Keywords
#   Description: 
#--------------------
# Publication 
#   Authors: Petit, J.-R., J. Jouzel, D. Raynaud, N.I. Barkov, J.-M. Barnola, I. Basile, M. Bender, J. Chappellaz, M. Davis, G. Delaygue, M. Delmotte, V.M. Kotlyakov, M. Legrand, V. Lipenkov, C. Lorius, L. Pépin, C. Ritz, E. Saltzman, and M. Stievenard
#   Published_Date_or_Year: 1999-06-03
#   Published_Title: Climate and atmospheric history of the past 420,000 years from the Vostok Ice Core, Antarctica
#   Journal_Name: Nature
#   Volume: 399
#   Edition: 
#   Issue: 
#   Pages: 429–436
#   Report_Number: 
#   DOI: 10.1038/20859
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#   Other_Reference_Details: 
#   Full_Citation:
#   Abstract: The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial–interglacial cycles. The succession of changes through each climate cycle and termination was similar, and atmospheric and climate properties oscillated between stable bounds. Interglacial periods differed in temporal evolution and duration. Atmospheric concentrations of carbon dioxide and methane correlate well with Antarctic air-temperature throughout the record. Present-day atmospheric burdens of these two important greenhouse gases seem to have been unprecedented during the past 420,000 years.
#--------------------
# Publication 
#   Authors: Barnola, J.-M., D. Raynaud, Y.S. Korotkevich, C. Lorius
#   Published_Date_or_Year: 1987-10-01
#   Published_Title: Vostok ice core provides 160,000-year record of atmospheric CO2
#   Journal_Name: Nature
#   Volume: 329
#   Edition: 
#   Issue: 
#   Pages: 408-414
#   Report_Number: 
#   DOI: 10.1038/329408a0
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#   Full_Citation:
#   Abstract: Direct evidence of past atmospheric CO2 changes has been extended to the past 160,000 years from the Vostok ice core. These changes are most notably an inherent phenomenon of change between glacial and interglacial periods. Besides this major 100,000-year cycle, the CO2 record seems to exhibit a cyclic change with a period of some 21,000 years.
#--------------------
# Publication 
#   Authors: Barnola, J.-M., P. Pimienta, D. Raynaud, Y.S. Korotkevich
#   Published_Date_or_Year: 1991
#   Published_Title: CO2 climate relationship as deduced from the Vostok ice core: a re-examination based on new measurements and on a re-evaluation of the air dating
#   Journal_Name: Tellus
#   Volume: 43B
#   Edition: 
#   Issue: 2
#   Pages: 83-90
#   Report_Number: 
#   DOI: 10.3402/tellusb.v43i2.15249
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#   Full_Citation:
#   Abstract: Interpretation of the past CO2 variations recorded in polar ice during the large climatic transitions requires an accurate determination of the airice age difference. For the Vostok core, the age differences resulting from different assumptions on the firn densification process are compared and a new procedure is proposed to date the air trapped in this core. The penultimate deglaciation is studied on the basis of this new air dating and new CO2 measurements. These measurements and results obtained on other ice cores indicate that at the beginning of the deglaciations, the CO2 increase is either in phase or lags by less than about 1000 years with respect to the Antarctic temperature, while it clearly lags the temperature at the onset of the last glaciation.
#--------------------
# Publication 
#   Authors: Chappellaz, J., J.-M. Barnola, D. Raynaud, Y.S. Korotkevich, C. Lorius
#   Published_Date_or_Year: 1990-05-10
#   Published_Title: Ice-core record of atmospheric methane over the past 160,000 years
#   Journal_Name: Nature
#   Volume: 345
#   Edition: 
#   Issue: 
#   Pages: 127-131
#   Report_Number: 
#   DOI: 10.1038/345127a0
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#   Abstract: Methane measurements along the Vostok ice core reveal substantial changes over the past 160,000 years which are associated with climate fluctuations. These results point to changes in sources of methane and also show that methane has probably contributed, like carbon dioxide, to glacial-interglacial temperature changes.
#--------------------
# Publication 
#   Authors: Jouzel J., C. Lorius, J.-R. Petit, C. Genthon, N.I. Barkov, V.M. Kotlyakov, V.M. Petrov
#   Published_Date_or_Year: 1987-10-01
#   Published_Title: Vostok ice core: a continuous isotope temperature record over the last climatic cycle (160,000 years)
#   Journal_Name: Nature
#   Volume: 329
#   Edition: 
#   Issue: 
#   Pages: 403-408
#   Report_Number: 
#   DOI: 10.1038/329403a0
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#   Full_Citation:
#   Abstract: A continuous deuterium profile along the 160,000-year Vostok ice core (Antarctica) is interpreted in terms of atmospheric temperature changes. This climatic record is the awaited terrestrial complement of the deep-sea records supporting the existence of a relation between the Pleistocene climate and orbital forcing.
#--------------------
# Publication 
#   Authors: Jouzel J., N.I. Barkov, J.-M. Barnola, M. Bender, J. Chappellaz, C. Genthon, V.M. Kotlyakov, V. Lipenkov, C. Lorius, J.-R. Petit, D. Raynaud, G. Raisbeck, C. Ritz, T. Sowers, M. Stievenard, F. Yiou, P. Yiou
#   Published_Date_or_Year: 1993-07-29
#   Published_Title: Extending the Vostok ice-core record of paleoclimate to the penultimate glacial period
#   Journal_Name: Nature
#   Volume: 364
#   Edition: 
#   Issue: 
#   Pages: 407-412
#   Report_Number: 
#   DOI: 10.1038/364407a0
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#   Full_Citation:
#   Abstract: The ice-core record of local temperature, dust accumulation and air composition at Vostok station, Antarctica, now extends back to the penultimate glacial period (~140–200 kyr ago) and the end of the preceding interglacial. This yields a new glaciological timescale for the whole record, which is consistent with ocean records. Temperatures at Vostok appear to have been more uniformly cold in the penultimate glacial period than in the most recent one. Concentrations of CO2 and CH4 correlate well with temperature throughout the record.
#--------------------
# Publication 
#   Authors: Jouzel J., C. Waelbroeck, B. Malaizé, M. Bender, J.-R. Petit, N.I. Barkov, J.-M. Barnola, T. King, V.M. Kotlyakov, V. Lipenkov, C. Lorius, D. Raynaud, C. Ritz, T. Sowers
#   Published_Date_or_Year: 1996-06-01
#   Published_Title: Climatic interpretation of the recently extended Vostok ice records
#   Journal_Name: Climate Dynamics
#   Volume: 12
#   Edition: 
#   Issue: 
#   Pages: 513-521
#   Report_Number: 
#   DOI: 10.1007/BF00207935
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#   Full_Citation:
#   Abstract: A new ice core drilled at the Russian station of Vostok in Antarctica reached 2755 m depth in September 1993. At this depth, the glaciological time scale provides an age of 260 ky BP (±25). We refine this estimate using records of dust and deuterium in the ice and of δ18O of O2 in the entrapped air. δ18O of O2 is highly correlated with insolation over the last two climatic cycles if one assumes that the EGT chronology overestimates the increase of age with depth by 12% for ages older than 112 ky BP. This modified age-depth scale gives an age of 244 ky BP at 2755 m depth and agrees well with the age-depth scale of Walbroeck et al. (in press) derived by orbital tuning of the Vostok δD record. We discuss the temperature interpretation of this latter record accounting for the influence of the origin of the ice and using information derived from deuterium-excess data. We conclude that the warmest period of stage 7 was likely as warm as today in Antarctica. A remarkable feature of the Vostok record is the high level of similarity of proxy temperature records for the last two climatic cycles (stages 6 and 7 versus stages 1–5). This similarity has no equivalent in other paleorecords.
#--------------------
# Publication 
#   Authors: Legrand M., C. Lorius, N.I. Barkov, V.N. Petrov
#   Published_Date_or_Year: 1988
#   Published_Title: Vostok (Antarctica) ice core: atmospheric chemistry changes over the last climatic cycle (160,000 years)
#   Journal_Name: Atmospheric Environment
#   Volume: 22
#   Edition: 
#   Issue: 2
#   Pages: 317-331
#   Report_Number: 
#   DOI: 10.1016/0004-6981(88)90037-6
#   Publication_Place: 
#   Publisher:
#   ISBN: 
#   Online_Resource: 
#   Other_Reference_Details: 
#   Full_Citation:
#   Abstract: A 2083 m deep ice core from Vostok Station (East Antarctica) has been used for a comprehensive study of all major ions (i.e. Na+, NH4+, K+, Ca2+, Mg2+, H+, Cl−, NO3− and SO42− originating from aerosols deposited over the last climatic cycle (160,000 a), as depicted from the isotopic composition of the ice. For the first time in deep ice core studies, a good balance between anions and cations is obtained throughout the profile. This allows the clear identification of marine salts (i.e. sea salt and Na2SO4), terrestrial salts (calcium and magnesium associated with nitrates and sulfates) and strong mineral acids (HNO3, H2SO4 and HCl). Concentration profiles confirm that both marine and terrestrial aerosol inputs were higher during cold climatic conditions (from 110 to 15 ka B.P.) than during the Last Interglacial (centered around 130 ka B.P.) and the Holocene (the last 10,000 a) stages. High concentration peaks (up to 5 and 30 times the Holocene values of marine and terrestrial contents, respectively) are in particular observed during the very cold climate characterizing the end of the penultimate glacial age (~ 160 ka B.P.) and the Last Glacial Maximum which terminated around 15 ka B.P. These peaks reflect strengthened sources and transport during full glacial conditions, linked to higher wind speeds, more extensive arid areas on the continents and the greater exposure of continental shelves. More generally, marine and terrestrial aerosol concentrations measured in ice are strongly affected by climatic conditions of global (source strength and atmospheric transport efficiency) and local (rate of snow accumulation) concern. As opposed to marine and terrestrial inputs, acidic gas-derived impurity concentrations (HNO3, H2SO4) remain relatively stable over the whole climatic cycle. In particular there is no correlation between observed H2SO4 fluctuations and the isotope-temperature profile. This would indicate the absence of a long-term relationship between volcanism and climate. The mineral acid contribution represents a large part (over 50%) of ice impurities deposited during interglacial periods. For glacial ice the contribution of marine and terrestrial salts becomes preponderant (up to 75% of total soluble impurities). During interglacial stages and the relatively warm periods of the Last Glacial Age, significant quantities of either Na2SO4 or HCl are found, possibly resulting from marine aerosol alteration during atmospheric transport from sea sources towards Antarctica. On the other hand, the Cl/Nam ratio values indicate the presence of non-fractionated marine aerosols during full glacial conditions, confirming faster transport from sea sources towards Antarctica.
#--------------------
# Publication 
#   Authors: Lorius C., J. Jouzel, C. Ritz, L. Merlivat, N.I. Barkov, Y.S. Korotkevitch, V.M. Kotlyakov
#   Published_Date_or_Year: 1985-08-01
#   Published_Title: A 150,000-year climatic record from Antarctic ice
#   Journal_Name: Nature
#   Volume: 316
#   Edition: 
#   Issue: 
#   Pages: 591-596
#   Report_Number: 
#   DOI: 10.1038/316591a0
#   Publication_Place: 
#   Publisher:
#   ISBN: 
#   Online_Resource: 
#   Other_Reference_Details: 
#   Full_Citation:
#   Abstract: During much of the Quaternary, the Earth's climate has undergone drastic changes most notably successive glacial and interglacial episodes. The past 150 kyr includes such a climatic cycle: the last interglacial, the last glacial and the present holocene interglacial. A new climatic–time series for this period has been obtained using δ18 O data from an Antarctic ice core.
#--------------------
# Publication 
#   Authors: Petit J.-R., L. Mourner, J. Jouzel, Y. Korotkevitch, V. Kotlyakov, C. Lorius
#   Published_Date_or_Year: 1990-01-04
#   Published_Title: Paleoclimatological implications of the Vostok core dust record
#   Journal_Name: Nature
#   Volume: 343
#   Edition: 
#   Issue: 
#   Pages: 56-58
#   Report_Number: 
#   DOI: 10.1038/343056a0
#   Publication_Place: 
#   Publisher:
#   ISBN: 
#   Online_Resource: 
#   Other_Reference_Details: 
#   Full_Citation:
#   Abstract: The 2,083-m Vostok ice core recovered by the Soviet Antarctic expeditions has provided much information of climatic and environmental interest, for a period covering a full glacial–interglacial cycle. Here we present and discuss the dust record obtained down to 2,202 m, the final depth to which this core was extended in 1986. First, we document the fact that major changes in aeolian deposits, as recorded in the Vostok core, appear to be of global significance and confirm the existence of a link between high-latitude aeolian deposits and the Earth's orbital parameters. Second, we propose atmospheric dust as a stratigraphic marker to compare timing with other records of palaeoclimate, and use the magnetic-susceptibility profile measured along the RC11-120 Indian Ocean core for this purpose, assuming that major dust events correspond to common aeolian inputs. This approach indicates that the Vostok and marine records were roughly in phase at the previous glacial–interglacial transition.
#--------------------
# Publication 
#   Authors: Sowers T., M. Bender, L.D. Labeyrie, J. Jouzel, D. Raynaud, D. Martinson, Y.S. Korotkevich
#   Published_Date_or_Year: 1993-12-01
#   Published_Title: 135,000 year Vostok - SPECMAP common temporal framework
#   Journal_Name: Paleoceanography
#   Volume: 8
#   Edition: 
#   Issue: 6
#   Pages: 737-766
#   Report_Number: 
#   DOI: 10.1029/93PA02328
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#   ISBN: 
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#   Full_Citation:
#   Abstract: The object of the present study is to introduce a means of comparing the Vostok and marine chronologies. Our strategy has been to use the δ18O of atmospheric O2 (denoted δ18Oatm) from the Vostok ice core as a proxy for the δ18O of seawater (denoted δ18Osw). Our underlying premise in using δ18Oatm as a proxy for δ18Osw is that past variations in δ18Osw (an indicator of continental ice volume) have been transmitted to the atmospheric O2 reservoir by photosynthesizing organisms in the surface waters of the world's oceans. We compare our record of δ18Oatm to the δ18Osw record which has been developed from studies of the isotopic composition of biogenic calcite (δ18Oforam) in deep-sea cores. We have tied our δ18Oatm record from Vostok to the SPECMAP timescale throughout the last 135 kyr by correlating δ18Oatm with a δ18Osw record from V19-30. Results of the correlation indicate that 77% of the variance is shared between these two records. We observed differences between the δ18Oatm and the δ18Osw records during the coldest periods, which indicate that there have been subtle changes in the factors which regulate δ18Oatm other than δ18Osw. Our use of δ18Oatm as a proxy for δ18Osw must therefore be considered tentative, especially during these periods. By correlating δ18Oatm with δ18Osw, we provide a common temporal framework for comparing phase relationships between atmospheric records (from ice cores) and oceanographic records constructed from deep-sea cores. Our correlated age-depth relation for the Vostok core should not be considered an absolute Vostok timescale. We consider it to be the preferred timescale for comparing Vostok climate records with marine climate records which have been placed on the SPECMAP timescale. We have examined the fidelity of this common temporal framework by comparing sea surface temperature (SST) records from sediment cores with an Antarctic temperature record from the Vostok ice core. We have demonstrated that when the southern ocean SST and Antarctic temperature records are compared on this common temporal framework, they show a high degree of similarity. We interpret this result as supporting our use of the common temporal framework for comparing other climate records from the Vostok ice core with any climate record that has been correlated into the SPECMAP chronology.
#--------------------
# Funding_Agency 
#   Funding_Agency_Name: 
#   Grant: 
#--------------------
# Site_Information 
#   Site_Name: Vostok
#   Location: Antarctica
#   Northernmost_Latitude: -78.47
#   Southernmost_Latitude: -78.47
#   Easternmost_Longitude: 106.8
#   Westernmost_Longitude: 106.8
#   Elevation_m: 3488
#--------------------
# Data_Collection  
#   Collection_Name: Vostok Na Petit1999
#   Earliest_Year: 419336
#   Most_Recent_Year: 72
#   Time_Unit: cal yr BP
#   Core_Length_m: 
#   Parameter_Keywords: chemistry
#   Notes: Data from Legrand et al.(1988), down to 2080 m have been included.
#--------------------
# Chronology_Information
#   Chronology: 
#
#--------------------
# Variables  
#
# PaST_Thesaurus_Download_Resource:  https://www.ncei.noaa.gov/pub/data/paleo/PaST-thesaurus/SKOS/past-thesaurus-v1.0.rdf
#   PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format.
#
# Variables format: Short_name <tab> what,material,error,units,seasonality,data_type,detail,method,data_format,additional_information
#  Note: the Short_name does not require a PaST term.
#
## ice_ageBP	ice age,,,calendar year before present,,ice cores,,,N,GT4 chronology
## Na_ppb	sodium,bulk ice,,parts per billion,,ice cores,,ion chromatography,N,
#
#--------------------
# Data:
# Data lines follow (have no #)
# Data line format - tab-delimited text, variable short name as header
# Missing_Values: nan
ice_ageBP	Na_ppb
72	12.48
129	65.37
170	30.31
211	24.26
258	21.47
397	37.25
444	22.55
469	33.63
523	25.58
581	38.08
665	39.3
726	22.84
788	19.43
848	25.52
912	43.26
976	19.35
1074	26.59
1107	29.77
1211	23.17
1285	16.53
1356	18.69
1426	53.09
1535	21.08
1612	33.45
1692	37.9
1772	21.91
1853	34.71
1931	35.05
2049	33.96
2129	36.11
2253	30.34
2331	28.41
2418	26.88
2501	27.66
2585	23.31
2670	24.74
2674.3	23.83
2760	39.99
2764.5	39.4
2847	38.47
2934	20.78
3026	28.09
3114	26.59
3201	29.98
3289	13.99
3379	39.39
3466	29.48
3558	nan
3646	27.17
3778	26.13
3824	19.52
3915	27.1
4009	17.29
4202	34.44
4250	34.38
4381	30.51
4466	36.42
4552	40.31
4642	33.79
4739	31.86
4831	18.21
4929	29.47
5025	32.21
5118	28.48
5212	17.05
5259	20.58
5305	18.33
5397	32.04
5488	26.23
5581	17.65
5674	29.53
5769	33.9
5863	45.13
5955	33.09
6052	29.09
6145	37.35
6193	30.4
6241	25.18
6287	21.04
6334	14.01
6436	33.44
6534	31.54
6631	26.69
6677	32.73
6724	24.22
6823	34.02
6924	26.4
7023	15.19
7124	30.18
7172	27.51
7220	23.01
7315	24.44
7364	32.18
7509	30.31
7602	30.32
7697	27.39
7794	18.9
7894	22.32
7994	23.01
8091	23.33
8095.4	37.95
8178	31.09
8182.8	34.28
8276	18.15
8325	19.34
8374	24.93
8378.8	22.52
8422	12.78
8471	27.54
8475.9	19.66
8569	37.07
8619	18.11
8668	13.54
8763	22.66
8861	17.65
8960	20.83
9107	27.64
9298	37.51
9302.8	25.87
9346	13.25
9589	20.71
10218	24.32
10415	34.8
10812	18.33
11146	14.53
11537	12.47
11695	42.75
12087	26.97
12202	37.27
12385	27.74
12391.1	38.35
12446	30.17
12507	44.9
12513.2	33.32
12569	48.24
12632	44.41
12694	44.89
12700.1	52.1
12755	45.36
12815	53.88
12874	52.7
12994	61.92
13000.1	48.93
13237	64.09
13414	37.34
13476	49.56
13482.3	55.62
13539	61.78
13600	59
13605.9	53.55
13659	39.76
13718	60.57
13723.6	45.71
13774	55.7
13883	47.23
13938	53.23
13992	33.37
13997.6	24.23
14048	51.53
14105	43.09
14110.8	47.38
14281	56.46
14342	24.93
14466	58.41
14472	44.5
14589	53.25
14595.2	30.43
14651	44.99
14839	55.12
14845.5	49.77
14904	54.54
14968	60.62
15032	58.51
15099	43.98
15105.8	56.4
15167	44
15300	44.21
15306.6	65.3
15366	44.42
15501	59.04
15507.9	70.17
15570	37.72
15708	50.57
15714.9	69.57
15777	65.36
15845	75.94
15852	76.7
15915	52.21
15987	61.37
16057	71.23
16128	61.45
16135.3	71.55
16275	79.02
16282.5	71.87
16502	84.24
16509.5	61.36
16653	100.18
16660.6	65.25
17058	120.49
17066.1	130.68
17139	134.4
17298	68.97
17462	72.63
17544	98.42
17552.1	126.79
18201	114.22
18283	138.89
18291.2	77.14
18365	86.78
18446	116.4
18454.4	96.42
18530	124.74
18615	78.66
18701	107.4
18709.6	136.65
18787	84.29
18795.3	135.79
18870	61.19
18950	62.06
19032	83.37
19040.4	103.81
19199	111.81
19207.3	114.63
19443	119.81
19451.2	140.38
19525	140.92
19782	136.91
19868	131.83
19953	113.64
20197	133.06
20611	112.42
20619.3	153.84
20859	91.78
20943	94.67
21358	88.7
22629	124.33
22972	114.25
23234	125.51
24102	106.69
24860	145.12
25776	71.4
26017	70.6
27019	95.5
27202	101.82
27641	88.38
27649.9	87.35
28163	110.26
29166	115.8
29332	140.61
29949	72.12
29957.7	77.29
30201	103.8
31733	99.72
32546	102.12
32787	73.15
32795.4	77.9
33628	102.78
34041	55.34
34669	73.02
35705	107.78
36086	74.1
36585	90.5
36593.1	68.28
37066	74.52
37230	99.35
37718	118
37959	118.8
38619	115.38
38783	68.76
40054	113.61
41031	94.48
41039.1	95.26
41638	96.08
41645.2	100.45
42374	141.54
42758	78.37
43540	83.26
44463	66.97
44972	112.63
45225	99.35
45846	104.12
46797	92.17
46966	93.26
47462	121.51
49034	57.22
49430	85.47
50217	99.48
50374	74.15
50928	49.46
51794	56.77
54286	78.61
54713	82.87
55615	107.51
55775	72.17
56698	60.08
56850	44.19
56993	67.57
57139	58.32
58759	63.37
59593	74.53
59674	85.6
60519	73.17
60779	66.08
61141	49.97
61406	124.98
61415	57.8
62213	101.47
63865	73.51
64322	56.01
64331.4	51.99
64340.8	101.7
64416	49.26
64698	63.67
65278	87.2
65296.6	65.28
66045	78.33
66054.9	131.69
66520	90.43
67272	90.91
67281.5	95.78
67462	99.97
67653	98.64
67848	161.81
68233	146.9
68242.7	78.42
68424	84.96
68715	82.35
69071	140.21
69079.4	70.84
69324	79.54
69959	71.31
69968.5	122.34
70425	31.11
70600	82.72
70608.3	99.46
71743	101.71
71750.9	87.72
71822	59.86
72489	55.84
72497.9	73.24
72578	94.93
72840	80.22
73440	52.27
73795	50.76
73973	64.71
74238	48.35
74246.4	53.32
74985	72.29
75066	55.24
75074.1	54.9
75147	75.32
75155.2	47.34
75928	68.4
75935.9	74.58
76465	64.23
76543	52.1
76622	62.4
76777	45.47
76784.7	47.94
77433	35.81
77521	54.31
77529.5	92.43
77687	57.7
78437	57.38
78445.5	57.2
78690	50.32
78772	58.74
78854	49.98
78937	46.68
78945.3	58.07
80257	64.24
81453	60.13
82427	49.85
83331	18.58
83470	42.5
84308	47.5
84315	37.45
84905	43.38
84971	34.26
85680	31.86
85746	36.86
86492	90.42
87554	39.08
87624	16.54
89221	27.95
89748	29.08
90286	34.89
91258	55.97
92040	72.26
93468	59.83
93961	46.19
94026	59.97
94585	51.44
95487	110.06
95693	37.7
95761	21.68
96511	37.88
96861	42.46
98157	49.79
98300	49.35
98439	51.73
98783	45.07
99063	48.17
99134	45.43
99622	36
100301	54.07
100307.6	48.59
100498	51.16
101234	49.13
102177	39.89
103553	39.23
103560.2	35.93
104266	37.06
104337	42.65
105342	31.16
105772	34.5
105779	44.5
106114	27.74
107121	44.73
107767	67.88
107852	65.42
108706	66.17
109790	49.75
109872	64.05
109952	66.34
111239	52.51
111247	39.32
111319	28.85
112708	76.98
112790	53.19
113425	51.84
113578	54.88
113656	34.05
113664	78.38
114562	57.83
114639	37.28
114715	70.02
115150	44.54
115157.2	42.59
115683	33.38
116296	50.82
116497	23.29
116503.6	25.46
116827	23.86
117264	56.56
117575	23.17
117635	18.3
117697	24.25
118135	13.19
118314	19.84
118376	14.28
118438	18.19
118444.1	27.03
118499	20.2
118559	27.42
119710	29.7
120199	21.23
120205	25.33
120439	19.93
120498	19.52
120669	15.86
121314	24.96
121373	10.08
121378.9	14.62
121432	10.22
121492	9.37
122006	18.79
122064	9.64
122122	10.13
122290	9.78
122515	17.18
122520.6	13.86
122919	24.59
123154	10.88
123602	7.96
123658	15.62
123715	17.56
123720.5	13.7
123770	9.47
123936	18.25
124765	18.49
124770.6	12.92
124821	10.36
124935	13.58
124993	14.69
125271	11.31
125653	12
125877	71.15
125933	18.02
126103	16.51
126217	13.27
126327	10.03
126598	16.98
126904	10.21
126909.1	12.4
127006	5.3
127057	17.55
127108	7.9
127113.1	11.43
127260	9.4
127360	23.39
127365	12.81
127510	4.93
127610	14.54
127760	38.46
127810	7.88
127860	10.41
128062	18.31
128067	12.51
128112	7.58
128161	43.53
128259	12.29
128284	7.13
128309	16.99
128405	9.06
128501	7.18
128549	7.51
128554	10.48
128599	8.48
128854	13.7
128859.2	7.48
129011	6.56
129016.4	6.48
129274	8.05
129279	8.23
129428	13.2
129545	14.37
129653	9.65
129705	19.33
129863	13.82
129916	46.67
130079	9.65
130185	8.78
130467	24.3
130525	23.66
130759	17.74
131004	22.55
131066	8.79
131374	23.95
131380.5	39.24
131439	27.46
131707	27.22
131773	16.77
132048	19.56
132477	30.96
132484.1	44.13
132619	24.3
132691	44.56
132836	59.62
132987	40
133142	53.42
133374	114.71
133679	35.48
134005	92.94
134013.6	76.93
134628	58.82
135308	73.02
135604	90.31
135903	91
136206	85.39
136216.3	86.67
136819	45.5
136829.4	83.2
137341	73.67
137754	94.57
137858	89.55
137966	72.08
138532	133.02
138543.2	105.98
138644	118.94
139418	128.74
139429.2	89.33
139530	96.64
140093	111.28
140542	120.81
140655	124.93
140986	101.95
141323	95.72
141334.1	115.76
141997	90.62
142108	67.48
142119	114.97
142440	58.58
143562	49.93
143790	91.26
144894	71.85
145905	59.46
146903	71.9
147347	69.29
148025	61.61
148691	53.09
150440	55.93
151502	103.89
152513	69.11
153868	80.61
154664	66.64
154783	37.41
156593	67.74
157202	60.69
158359	71.28
159444	83.36
160076	78.25
160403	77.29
161427	93.62
162117	78.68
162543	104.38
163777	98.77
165021	90.35
165522	98.31
166537	126.27
167664	81.46
168391	53.41
169314	81.57
170340	52.79
171880	65.29
172393	65.69
173642	59.95
174688	59.06
174804	52.24
176117	39.72
177142	58.09
177644	41.86
178554	91.38
179820	52.96
180426	70.21
181011	90.16
182146	70.73
183807	113.05
184367	50.49
185069	95.38
186499	107.09
187067	93.49
187630	89.19
189165	57.84
190705	49.83
190822	54.17
192138	79.28
193421	42.49
194565	28.36
195808	50.52
196846	41.02
197211	18.92
198426	40.27
199220	56.9
200451	35.62
201423	31.96
202496	56.86
202717	41.35
202826	18.98
203046	37.4
203592	20.35
203704	52.28
204394	41.63
204512	26.85
204743	49.52
205092	18.47
205458	51.83
205582	46.53
205708	49.61
205965	75.03
206496	nan
206890	38.87
207019	59.8
207149	71.69
207540	33.81
207803	51.11
208747	69.53
209122	49.73
209487	60.12
209989	65.41
210348	60.67
211176	67.99
211771	26.45
212122	43.49
212470	32.43
212813	56.56
213156	19.34
213500	nan
213845	19.14
214525	25.16
214865	28.8
215207	25.99
216004	32.29
216247	40.27
216608	11.73
216951	28.13
217747	13.13
218110	17.83
218353	21.9
218736	27.88
219261	51.7
219527	51.84
219660	49.4
220082	78.06
220523	59.71
220674	60.54
221120	61.13
221273	58.67
221752	72.5
221918	69.48
222253	84.76
222782	95.22
224055	108.38
224610	96.28
225128	85.88
225629	79.65
225797	68.98
226140	51.41
227016	83.93
227774	97.45
228313	97.61
229052	84
229617	81.33
230336	68.56
230867	84.27
231383	89.03
232364	50.14
232993	51.59
233452	55.91
234327	42.02
234610	38.69
235043	48.32
235469	31.74
236033	33.01
236305	31.69
236707	32.84
237216	22.82
237459	21.55
237801	15.41
238020	17.53
238465	6.05
238813	6.96
239175	8.07
239562	12.78
239992	26.09
240453	33.28
240947	36.3
241484	47.91
242071	78.17
242656	69.91
243220	74.54
243797	85.04
244425	79.57
245070	98.61
245707	92.62
246358	116.58
247224	121.2
247656	104.81
248321	102.13
248998	121.44
249647	90.69
250287	124.37
250901	69.62
251320	90.61
252195	95.03
252858	90.32
253535	106.94
254851	71.49
255490	87.84
256161	74.37
256855	95.55
257580	104.24
258325	94.87
259083	102.24
259856	152.41
260911	120.4
261445	105.18
262241	126.3
263043	129.02
263575	119.87
263844	123.72
264380	122.58
264639	99.62
265164	107.27
265433	120.12
265706	116.87
265971	121.51
266228	98.71
266750	103.33
267012	143.65
267538	101.75
267796	107.78
268048	118.83
268534	71.4
269029	80.69
269281	88.42
269780	90.81
270026	nan
270507	75.76
270744	85.8
271210	69.34
271444	73.1
271917	69.78
272144	88.86
272592	64.61
272815	59.54
273256	65.43
273475	71.84
273918	53.95
274136	62.12
274565	55.54
274781	63.28
275216	49.32
275432	53.09
275859	53.64
276070	38.61
276496	51.02
276707	56.48
277122	28.88
277334	64.71
277771	nan
277996	46.55
278456	61.5
278688	48.24
279153	57.12
279391	64.55
279886	69.77
280147	69.41
280668	90.39
280921	58.66
281443	84.92
281714	79.55
282250	70.82
282510	77.79
283013	69.26
283265	51
283785	74.48
284337	76.29
284629	104.6
285223	92.4
285516	97.76
286083	73.43
286362	84.72
286916	70.9
287191	78.39
287724	84.38
287988	64.82
288533	75.35
288816	65.14
289385	93.47
289661	80.19
290216	69.83
290496	73.23
291037	90.97
291300	65.61
291830	75.93
292091	74.12
292589	64.82
292832	55.87
293343	55.48
293616	68.27
294178	64.23
294466	73.7
295033	68.2
295311	68.31
295860	67.77
296130	58.63
296676	62.09
296953	62.97
297506	62.69
297781	49.44
298326	53.35
298593	38.52
299120	28.21
299381	38.36
299891	40.24
300143	30.97
300650	47.9
300903	40.73
301410	40.04
301664	45.19
302167	36.66
302428	44.06
302934	47.28
303175	30.82
303661	23.9
303916	41.87
304445	38.98
304721	38.69
305291	42.16
305586	47.17
306201	51.02
306514	67.72
307130	73.51
307432	62.96
308030	71.44
308327	44.96
308907	38.55
309195	39.65
309767	37.12
310049	43.61
310605	31.7
310876	32.56
311411	31.85
311676	34.77
312209	29.93
312476	29.19
313006	38.6
313265	30.89
313778	28.01
314033	24.26
314542	22.58
314795	22.1
315296	28.73
315544	24.91
316034	26.09
316279	13.6
316766	26.07
317010	33.98
317503	21.41
317751	16.87
318241	17.47
318485	19.44
318973	18.58
319219	23.1
319708	17.32
319955	18.23
320458	14.45
320709	20.94
321191	15
321423	9.17
321872	12.19
322088	8.11
322513	5.78
322724	3.1
323144	6.48
323356	6.54
323784	7.25
324000	10.96
324441	7.09
324668	7.29
325137	8.01
325380	3.51
325901	8.08
326176	14.17
326767	20.91
326799	23.16
327731	31.46
328061	28.24
328747	36.26
329104	nan
329853	41.72
330243	48.31
331054	62.99
331474	61.53
332353	74.36
333807	113.44
334805	97.23
335794	96.69
336767	83.12
337255	92.62
338233	93.92
338724	84.24
339705	82.6
340197	85.15
341180	86.87
341654	67.34
342597	68.9
343078	72.37
344056	70.02
344549	74.55
345530	109.49
346025	77.95
347031	86.12
347540	76.63
348570	86.57
349093	78.71
350170	90.73
350719	98.93
351823	90.39
352380	106.55
353505	100.68
354068	109.37
355185	110.17
355737	93.71
356840	82.89
357390	101.89
358468	149.64
359008	83.1
360069	70.08
360592	64.83
361659	74.51
362190	78.73
363263	91.53
363799	73.63
364884	70.34
365427	62.14
366479	64.19
366994	48.81
368026	52.89
368534	51.18
369547	46.94
370081	56.68
371200	71.29
371793	76.02
372986	65.6
373568	63.69
374709	56.66
375272	48.85
376374	54.06
376901	43.41
377910	41.26
378429	41.02
379529	57.55
380098	56.98
381224	52.06
381774	51.24
382832	43.43
383342	42.94
384385	45.09
386154	53.8
386790	68.94
388063	58.75
388692	69.96
389966	58.76
390616	65.76
391928	61.27
392586	63.6
393907	64.1
394559	53.91
395782	46.24
396359	42.3
397481	36.28
398035	27.19
399133	28.63
399680	29.19
400776	28.8
401318	26.18
402404	23.05
402953	19.64
404033	19.78
404562	16.92
405615	16.13
406135	14.84
406653	16.83
407677	14.94
408185	11.54
409199	13.78
409701	13.42
410686	10.98
411189	13.75
412224	13.2
412750	12.29
413825	13.9
414370	13.85
415459	14.72
416005	13.41
417096	13.78
417645	13.32
418759	12.02
419336	13.66