# Maxwell - Clear Fork Gorge - PIST - ITRDB OH008 #---------------------------------------------------- # 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/34664 # 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-tree-34664.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Tree Ring # # Dataset_DOI: # # Science_Keywords: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/oh008-rwl-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; oh008-rwl-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/oh008.rwl # Related_Online_Description: RWL File; Raw Measurements - Tucson Decadal File # # Supplemental_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/oh008.txt # Supplemental_Description: Text File; Correlation Stats # #-------------------- # Contribution_Date # Date: 2021-10-06 #-------------------- # File_Last_Modified_Date # Date: 2021-10-06 #-------------------- # Title # Study_Name: Maxwell - Clear Fork Gorge - PIST - ITRDB OH008 #-------------------- # Investigators # Investigators: Maxwell, J.T.(https://orcid.org/0000-0001-9195-3146); Matheus, T.J.; Strange, B.M. #-------------------- # Description_Notes_and_Keywords # Description: Density of tree-ring network influence on drought reconstruction NOAA Template Raw Measurements file added 2021-12-29. #-------------------- # Publication # Authors: Justin T. Maxwell, Grant L. Harley, Trevis J. Matheus, Brandon M. Strange, Kayla Van Aken, Tsun Fung Au, Joshua C. Bregy # Journal_Name: Climate of the Past # Published_Title: Sampling density and date along with species selection influence spatial representation of tree-ring reconstructions # Published_Date_or_Year: 2020 # Volume: 16 # Pages: 1901-1916 # Issue: 5 # Report_Number: # DOI: 10.5194/cp-16-1901-2020 # Full_Citation: None # Abstract: Our understanding of the natural variability of hydroclimate before the instrumental period (ca. 1900 CE in the United States) is largely dependent on tree-ring-based reconstructions. Large-scale soil moisture reconstructions from a network of tree-ring chronologies have greatly improved our understanding of the spatial and temporal variability in hydroclimate conditions, particularly extremes of both drought and pluvial (wet) events. However, certain regions within these large-scale network reconstructions in the US are modeled by few tree-ring chronologies. Further, many of the chronologies currently publicly available on the International Tree-Ring Data Bank (ITRDB) were collected in the 1980s and 1990s, and thus our understanding of the sensitivity of radial growth to soil moisture in the US is based on a period that experienced multiple extremely severe droughts and neglects the impacts of recent, rapid global change. In this study, we expanded the tree-ring network of the Ohio River valley in the US, a region with sparse coverage. We used a total of 72 chronologies across 15 species to examine how increasing the density of the tree-ring network influences the representation of reconstructing the Palmer Meteorological Drought Index (PMDI). Further, we tested how the sampling date and therefore the calibration period influenced the reconstruction models by creating reconstructions that ended in the year 1980 and compared them to reconstructions ending in 2010 from the same chronologies. We found that increasing the density of the tree-ring network resulted in reconstructed values that better matched the spatial variability of instrumentally recorded droughts and, to a lesser extent, pluvials. By extending the calibration period to 2010 compared to 1980, the sensitivity of tree rings to PMDI decreased in the southern portion of our region where severe drought conditions have been absent over recent decades. We emphasize the need of building a high-density tree-ring network to better represent the spatial variability of past droughts and pluvials. Further, chronologies on the ITRDB need updating regularly to better understand how the sensitivity of tree rings to climate may vary through time. #-------------------- # Funding_Agency # Funding_Agency_Name: US Department of Agriculture # Grant: 2017-67013-26191 #-------------------- # Site_Information # Site_Name: Clear Fork Gorge # Location: Ohio # Northernmost_Latitude: 40.605666 # Southernmost_Latitude: 40.605666 # Easternmost_Longitude: -82.283638 # Westernmost_Longitude: -82.283638 # Elevation_m: 373 #-------------------- # Data_Collection # Collection_Name: OH008 # First_Year: 1854 # Last_Year: 2016 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: None #-------------------- # Species # Species_Name: Pinus strobus L. # Common_Name: eastern white pine # Tree_Species_Code: PIST #-------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables format: shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_CE age,,,year Common Era,,tree ring,,,N, ## CFP01A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP01A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP01B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP01B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP03B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP03B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP04A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP04A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP04B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP04B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP05A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP05A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP05B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP05B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP06A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP06A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP06B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP06B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP07A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP07A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP07B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP07B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP08A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP08A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP08B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP08B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP09A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP09A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP09B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP09B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP10A_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP10A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 ## CFP10B_raw total ring width,,,millimeter,,tree ring,,,N,Tree ID: CFP10B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 #--------------------- # Data: # Missing_Values: NA age_CE CFP01A_raw CFP01B_raw CFP03B_raw CFP04A_raw CFP04B_raw CFP05A_raw CFP05B_raw CFP06A_raw CFP06B_raw CFP07A_raw CFP07B_raw CFP08A_raw CFP08B_raw CFP09A_raw CFP09B_raw CFP10A_raw CFP10B_raw 1854 NA NA NA NA NA NA NA NA NA NA 2.992 NA NA NA NA NA NA 1855 NA NA NA NA NA NA NA NA NA NA 3.337 NA NA NA NA NA NA 1856 NA NA NA NA NA NA NA NA NA NA 3.326 NA NA NA NA NA NA 1857 NA NA NA NA NA NA NA NA NA NA 3.537 NA NA NA NA NA NA 1858 NA NA NA NA NA NA NA NA NA NA 3.858 NA NA NA NA NA NA 1859 NA NA NA NA NA 3.182 NA NA NA NA 3.262 NA NA NA NA NA NA 1860 NA NA NA NA NA 3.176 NA NA NA NA 3.401 NA NA NA NA NA NA 1861 NA NA NA NA NA 2.817 NA NA NA NA 3.567 NA NA NA NA NA NA 1862 NA NA NA NA NA 2.008 NA NA NA NA 2.736 NA NA NA NA NA NA 1863 NA NA NA NA NA 2.839 NA NA NA NA 2.963 NA NA NA NA NA NA 1864 NA NA NA NA NA 2.23 NA NA NA NA 3.109 NA NA NA NA NA NA 1865 NA NA NA NA NA 2.851 NA NA NA NA 3.444 NA NA NA NA NA NA 1866 NA NA 9.185 NA NA 3.319 NA NA NA NA 4.426 NA NA NA NA NA NA 1867 NA NA 6.797 NA NA 2.288 NA NA NA NA 4.195 NA NA NA NA NA NA 1868 NA NA 6.467 NA NA 2.172 NA NA NA NA 3.873 NA NA NA NA NA NA 1869 NA NA 9.366 NA NA 2.317 NA NA NA NA 6.621 NA NA NA NA NA NA 1870 NA NA 6.197 NA NA 2.149 NA NA 1.404 NA 3.251 NA NA NA NA NA NA 1871 NA NA 8.49 NA NA 2.051 NA NA 1.152 NA 3.627 NA NA NA NA NA NA 1872 NA NA 8.788 NA NA 2.517 NA NA 1.354 NA 3.104 NA NA NA NA NA NA 1873 NA NA 8.262 NA NA 2.349 NA NA 1.021 NA 3.464 NA NA NA NA NA NA 1874 NA NA 7.21 NA NA 2.159 NA NA 1.191 3.772 2.967 NA NA NA NA NA NA 1875 NA NA 4.99 NA NA 2.744 NA NA 1.657 3.196 3.202 NA NA NA NA NA NA 1876 NA NA 9.071 NA NA 3.797 NA 3.517 1.852 2.264 3.959 NA NA NA NA NA NA 1877 NA NA 6.585 NA NA 3.748 NA 5.172 3.238 3.809 4.184 NA NA NA NA NA NA 1878 NA NA 6.977 NA NA 4.15 NA 6.522 6.352 5.318 4.962 NA NA NA NA NA NA 1879 NA NA 4.244 NA NA 4.14 5.132 5.514 5.024 2.959 6.627 NA NA NA NA NA NA 1880 NA NA 6.37 NA NA 3.997 4.12 7.076 7.592 1.721 8.622 NA NA NA NA NA NA 1881 NA NA 4.028 NA NA 3.045 3.164 4.209 5.278 1.413 4.971 4.531 NA NA 3.514 NA NA 1882 NA NA 4.373 NA NA 3.097 3.48 5.099 4.785 1.634 5.827 5.673 NA NA 6.177 NA NA 1883 NA NA 3.807 NA NA 3.723 3.179 5.836 5.589 6.623 5.793 5.099 NA NA 5.341 NA NA 1884 NA NA 3.71 NA NA 3.469 2.889 5.857 4.009 4.09 4.836 4.658 NA NA 4.944 NA NA 1885 NA NA 4.97 NA NA 3.127 3.475 5.992 4.707 4.342 4.841 4.038 NA NA 4.842 5.403 NA 1886 NA NA 4.98 NA NA 3.43 3.093 5.697 4.113 4.572 3.635 3.028 NA NA 4.717 4.46 NA 1887 NA NA 4.135 NA NA 3.61 2.424 3.766 2.999 4.291 4.264 3.356 NA NA 3.143 4.23 NA 1888 NA NA 4.842 NA NA 4.879 2.82 4.836 2.975 3.568 3.571 4.283 NA NA 3.975 3.921 NA 1889 NA NA 8.02 NA NA 5.226 3.061 5.468 3.726 4.946 3.141 3.174 NA NA 4.28 3.637 NA 1890 NA NA 5.61 NA NA 5.437 2.808 4.485 3.247 4.018 3.079 4.442 NA NA 4.162 3.295 5.766 1891 NA NA 5.341 NA NA 4.345 2.691 6.3 3.912 5.665 4.807 3.739 NA NA 6.591 4.026 5.951 1892 NA NA 7.083 NA NA 4.109 2.397 7.032 4.939 4.663 7.389 2.88 NA NA 4.451 3.477 5.312 1893 NA NA 4.233 NA NA 2.615 2.009 4.886 3.026 3.18 4.786 2.206 NA NA 2.31 2.577 3.594 1894 NA NA 2.919 NA NA 2.12 1.375 3.949 2.14 2.896 4.233 1.735 NA NA 1.863 1.653 3.062 1895 NA NA 3.572 NA NA 2.069 1.515 3.424 2.061 1.717 3.685 2.674 NA NA 1.034 1.358 3.158 1896 NA NA 3.553 3.413 NA 2.713 2.019 5.523 2.729 2.418 4.392 2.436 NA NA 2.479 2.427 4.134 1897 NA NA 3.07 3.315 NA 2.633 1.627 4.327 2.685 1.82 3.28 2.406 NA NA 3.347 2.085 5.599 1898 NA NA 2.199 4.109 NA 3.498 1.741 5.01 3.399 2.279 2.969 2.044 NA NA 2.934 4.635 3.944 1899 NA NA 2.963 4.203 NA 4.596 2.164 3.776 2.848 1.879 3.164 1.572 NA NA 2.395 3.996 2.422 1900 NA NA 2.274 2.676 NA 5.046 1.595 3.133 2.844 1.482 2.907 0.225 NA NA 1.226 3.805 2.34 1901 NA NA 4.102 4.099 NA 7.043 1.899 4.046 3.022 1.644 3.15 1.722 NA NA 1.501 5.743 2.565 1902 NA NA 5.914 5.428 NA 7.332 1.909 4.343 3.419 1.662 2.357 1.19 NA NA 1.383 5.696 2.732 1903 NA NA 4.811 3.788 NA 4.559 2.065 3.472 2.906 1.518 2.524 1.215 NA 1.784 1.079 3.969 2.434 1904 NA NA 1.172 2.436 NA 2.74 1.575 2.058 2.184 0.818 1.321 1.144 NA 0.958 1.057 1.13 1.863 1905 NA NA 0.686 4.01 NA 2.865 2.607 2.749 2.674 1.035 1.633 1.357 NA 1.394 1.426 1.793 2.134 1906 NA NA 0.726 4.213 NA 4.611 3.793 4.932 3.671 1.561 2.442 1.677 NA 2.02 2.604 2.23 2.119 1907 NA NA 0.988 3.906 NA 3.291 2.805 3.325 2.597 1.313 2.31 1.279 NA 2.676 2.356 2.225 1.587 1908 NA NA 1.457 3.878 NA 2.996 2.849 4.572 3.14 1.256 2.563 1.347 NA 2.139 1.828 2.518 1.913 1909 2.497 NA 1.217 4.166 NA 2.666 2.994 3.77 3.721 1.303 2.466 0.791 NA 3.055 1.544 3.145 1.325 1910 2.349 NA 1.118 2.468 NA 1.985 2.605 2.457 2.856 0.959 1.986 1.157 NA 1.894 1.214 2.317 1.158 1911 1.786 NA 0.681 1.364 NA 1.25 1.499 1.83 1.902 0.797 1.257 1.025 NA 1.05 0.821 1.653 0.923 1912 3.232 NA 1.474 2.438 NA 2.309 2.308 2.632 3.402 1.563 1.673 1.634 NA 2.182 1.378 2.194 1.263 1913 3.007 NA 1.393 3.359 NA 2.72 2.44 3.049 3.037 1.142 1.203 1.11 NA 1.716 1.06 2.547 2.208 1914 2.132 NA 1.152 2.71 NA 2.086 1.928 1.984 2.579 0.87 1.365 1.076 NA 0.949 1.161 1.701 1.768 1915 2.264 NA 1.789 2.995 NA 2.277 2.648 2.321 2.856 1.104 1.66 1.375 NA 1.443 1.43 3.55 2.466 1916 1.785 NA 1.343 2.886 NA 1.979 2.104 2.329 2.621 0.906 1.094 1.017 NA 1.682 1.245 3.004 1.88 1917 1.537 NA 0.995 1.962 NA 1.821 1.378 2.174 1.472 0.556 0.856 1.102 NA 1.739 0.858 2.496 1.381 1918 1.017 3.766 0.993 1.806 NA 1.794 1.499 2.028 1.621 0.509 0.71 1.102 NA 2.173 0.856 1.616 1.437 1919 1.973 2.571 0.787 2.693 NA 2.106 1.677 2.337 1.97 0.464 1.062 1.171 NA 2.422 0.973 1.428 1.855 1920 2.564 5.146 1.014 2.502 NA 2.097 1.814 2.607 2.143 0.519 0.92 1.024 NA 3.105 1.065 1.913 1.491 1921 2.104 2.055 1.184 2.418 NA 2.147 1.96 2.714 2.259 0.59 1.283 1.449 NA 2.934 1.427 1.524 1.339 1922 2.363 4.56 1.27 3.149 NA 2.33 2.041 2.663 2.016 0.833 1.376 1.153 NA 3.651 1.614 1.376 1.486 1923 1.695 3.6 0.765 1.868 NA 1.428 1.087 1.665 1.222 0.638 0.981 0.772 NA 2.355 1.335 1.132 0.825 1924 1.91 1.813 1.039 1.734 NA 1.873 1.752 2.215 1.521 0.93 1.259 0.963 NA 2.112 1.357 3.108 1.361 1925 2.684 2.234 1.212 1.494 NA 2.707 2.171 2.736 1.868 0.741 1.154 1 NA 2.895 1.615 2.367 1.383 1926 2.308 2.351 1.178 1.95 NA 2.483 1.789 3.184 2.227 0.877 1.08 0.757 NA 4.22 1.619 4.129 1.258 1927 2.346 3.262 1.213 2.412 NA 3.17 1.591 3.317 1.925 0.817 1.155 0.803 NA 3.763 1.426 3.283 1.645 1928 1.3 2.608 1.213 1.386 NA 2.461 1.62 2.482 1.726 0.633 1.241 0.994 NA 1.957 1.541 1.762 0.989 1929 1.347 3.342 1.66 1.798 NA 3.112 1.681 2.108 1.345 0.702 1.2 0.648 NA 2.182 1.734 2.151 1.146 1930 0.829 0.928 1.093 0.859 NA 1.809 0.827 1.133 0.812 0.507 0.893 0.588 1.5 0.874 0.872 0.974 0.736 1931 1.107 1.783 0.693 0.998 NA 1.687 0.895 1.439 0.896 0.581 0.603 0.553 2.196 0.782 1.081 0.855 0.8 1932 1.061 1.625 1.143 1.104 NA 2.137 0.851 1.375 0.953 0.438 0.998 0.73 2.559 1.206 0.995 1.669 0.954 1933 1.123 1.23 0.991 1.276 1.803 1.815 0.752 1.125 0.808 0.599 0.87 0.664 2.871 1.568 0.755 1.613 1.226 1934 1.232 2.083 1.338 1.486 1.713 2.922 0.984 1.881 1.922 0.483 1.192 0.938 2.413 1.735 0.785 1.902 1.754 1935 2.215 5.217 2.485 3.35 2.765 3.819 1.644 2.619 2.699 1.051 1.838 1.397 3.797 4.099 1.279 3.14 2.217 1936 1.864 2.85 2.243 1.908 1.743 3.834 1.3 2.027 1.485 0.731 1.555 1.127 3.251 3.337 1.094 3.012 1.856 1937 2.406 2.418 1.629 1.968 1.887 2.949 1.294 1.303 1.538 0.48 1.12 1.082 2.344 3.07 0.922 2.087 1.971 1938 2.636 2.828 1.928 2.238 1.851 2.906 1.161 1.736 2.402 0.608 1.151 0.795 1.409 3.722 1.78 3.428 1.771 1939 1.769 2.046 1.117 1.649 1.369 1.956 0.84 1.38 1.526 0.553 1.06 0.572 1.111 1.787 2.129 2.018 1.009 1940 1.303 1.378 0.616 1.195 0.965 1.277 0.762 0.744 0.759 0.278 0.722 0.502 1.119 1.303 1.174 1.312 0.665 1941 1.583 3.05 1.02 1.165 1.107 1.492 0.823 1.02 1.065 0.579 0.99 0.74 1.328 1.814 1.368 1.839 0.8 1942 1.981 6.727 0.879 1.943 1.522 1.757 0.873 1.493 1.365 0.424 1.169 0.847 1.165 3.328 1.266 1.367 1.321 1943 1.596 5.105 0.575 1.831 1.451 1.246 0.575 1.2 1.2 0.258 0.799 0.516 1.366 4.946 0.683 1.525 1.352 1944 1.533 2.334 0.766 1.564 1.382 1.22 0.838 1.343 1.182 0.39 1.001 0.874 1.259 2.974 1.167 1.141 1.369 1945 1.864 3.497 1.091 2.25 1.593 1.955 1.186 1.885 1.833 0.451 1.248 0.788 1.856 4.283 1.222 1.912 1.938 1946 2.422 2.488 0.852 2.138 1.163 1.566 1.774 1.668 1.79 0.369 1 0.697 2.529 3.616 1.432 1.535 1.528 1947 1.613 2.296 0.752 2.069 1.643 1.823 1.49 2.097 2.144 0.378 1.334 0.778 2.517 3.749 1.864 1.952 1.392 1948 1.721 3.326 1.203 1.95 1.32 1.901 1.386 2.042 1.83 0.475 1.489 0.626 2.887 3.763 1.944 4.42 1.131 1949 1.604 1.444 1.127 1.684 1.224 1.426 1.168 1.438 1.594 0.429 1.341 0.573 2.152 1.896 1.279 2.367 1.147 1950 1.548 1.782 1.165 1.482 0.944 1.464 0.8 1.548 1.284 0.557 1.329 0.717 1.952 2.039 1.214 2.114 1.011 1951 1.685 1.87 1.132 1.724 1.011 1.335 0.959 1.597 1.384 0.502 1.024 0.66 1.517 1.83 1.054 2.436 1.139 1952 1.62 1.607 0.93 1.336 1.053 1.214 1.07 1.284 1.437 0.488 0.917 0.689 1.153 1.122 0.945 2.171 1.086 1953 1.961 2.014 1.416 1.949 1.384 1.477 0.99 1.577 1.711 0.566 0.987 0.771 1.757 1.644 1.387 3.688 1.232 1954 1.886 1.859 1.09 1.362 1.019 1.33 0.809 1.036 0.935 0.513 0.928 0.646 1.385 1.76 1.261 2.487 0.934 1955 2.83 2.906 1.247 2.239 1.67 1.502 1.647 1.238 0.932 0.43 0.658 0.78 1.971 2.93 1.835 2.78 1.384 1956 2.766 4.179 1.655 2.13 1.456 1.673 1.736 1.784 1.572 0.521 0.784 0.631 2.676 4.85 2.328 4.064 1.222 1957 2.408 4.326 1.742 2.263 1.401 1.77 1.948 1.882 1.837 0.61 1.288 1.326 2.915 5.308 2.365 3.279 1.536 1958 3.322 4.95 2.001 2.603 1.265 1.806 1.671 2.055 1.968 0.688 1.046 1.352 3.82 9.714 2.726 4.001 1.763 1959 3.373 6.322 2.115 2.015 1.168 1.307 1.708 1.794 1.86 0.556 0.638 1.539 4.357 7.987 2.296 3.204 1.668 1960 4.33 7.513 2.472 2.829 1.464 1.82 1.68 2.344 2.187 0.742 1.163 1.899 3.544 7.926 2.155 4.964 2.256 1961 4.313 4.834 2.381 1.956 1.357 1.517 1.57 2.209 2.487 0.638 1.099 1.358 2.319 5.364 1.815 3.53 1.882 1962 2.847 3.028 1.756 1.593 0.998 1.351 0.9 1.437 1.538 0.598 0.856 1.094 1.678 3.203 1.16 2.667 1.176 1963 4.708 4.915 2.577 2.072 1.372 1.73 1.439 2.162 2.196 0.674 1.393 1.225 1.982 4.343 1.536 4.122 2.052 1964 3.45 3.917 1.579 1.676 1.19 1.346 1.133 1.335 1.474 0.474 1.057 1.075 1.695 1.887 0.983 2.154 1.484 1965 2.548 2.935 1.104 1.348 0.781 1.075 0.828 1.051 1.185 0.551 0.993 0.923 1.233 0.906 0.747 1.654 1.295 1966 3.087 4.693 1.08 1.896 1.037 0.798 0.589 1.365 1.342 0.341 0.95 0.938 1.017 0.925 0.782 2.245 1.452 1967 2.332 2.078 1.099 1.398 0.89 0.709 0.644 1.34 1.035 0.53 0.538 1.083 1.092 0.82 0.682 1.286 1.005 1968 3.339 2.436 1.584 1.91 1.201 1.045 0.873 1.552 1.583 0.424 0.827 1.097 1.434 1.672 0.768 2.948 1.239 1969 3.582 3.264 1.631 1.693 0.961 1.267 0.996 1.422 1.29 0.442 1.187 1.18 1.7 1.68 0.728 3.397 1.172 1970 4.146 6.004 1.912 1.928 1.369 1.332 1.019 1.72 1.216 0.399 0.865 1.044 2.167 4.681 1.063 3.379 1.286 1971 5.599 4.955 2.04 1.711 1.406 1.186 0.786 1.879 1.668 0.606 1.24 1 2.066 7.103 1.188 3.837 1.195 1972 6.367 3.214 1.844 2.105 1.578 1.493 1.355 1.403 1.303 0.595 1.078 1.063 1.874 7.369 1.171 3.078 1.314 1973 3.904 3.102 1.614 1.85 1.48 1.309 1.165 1.605 1.138 0.39 1.574 0.619 2.454 5.726 0.924 2.482 1.114 1974 3.295 5.073 1.366 1.971 0.777 1.468 1.303 1.424 1.189 0.49 1.33 0.797 2.982 4.924 1.046 2.726 0.929 1975 2.575 2.624 0.866 1.272 0.834 1.124 0.802 1.124 1.073 0.453 1.298 0.557 1.652 2.757 1.138 2.574 0.962 1976 2.771 3.718 1.375 2.196 0.918 1.077 0.69 1.386 1.429 0.595 1.55 0.706 2.997 5.109 1.57 4.34 1.06 1977 3.172 4.729 1.191 2.226 1.262 1.889 0.915 1.061 0.944 0.707 1.645 1.556 3.413 4.851 1.78 3.076 1.171 1978 1.873 2.908 1.028 1.85 1.087 1.645 0.953 1.518 1.242 0.596 1.439 1.088 2.483 3.152 1.194 3.517 1.355 1979 2.233 2.772 0.982 1.866 1.075 1.041 0.93 1.05 1.014 0.456 1.051 1.126 2.014 2.677 1.062 2.916 1.081 1980 2.7 6.313 1.459 2.552 1.536 1.258 1.202 1.647 1.524 0.729 1.495 1.713 2.312 6.988 1.345 3.796 1.933 1981 3.089 6.113 1.533 2.376 1.535 1.6 1.183 2.044 1.504 1.001 1.827 1.855 3.128 6.327 1.457 3.454 1.863 1982 2.157 2.971 1.178 1.831 0.959 1.44 0.933 1.331 0.799 0.416 1.056 1.462 2.862 3.72 1.025 2.266 0.827 1983 1.887 2.63 1.152 1.682 0.967 1.557 0.885 1.078 1.113 0.601 0.646 1.316 1.967 1.966 0.995 1.779 1.29 1984 2.316 4.074 1.407 2.082 0.892 1.309 0.973 1.236 1.528 0.833 1.008 1.042 1.643 2.593 1.178 2.617 1.044 1985 2.901 5.098 1.364 1.736 0.734 1.676 0.77 1.428 1.239 0.811 0.859 1.207 2.178 2.126 1.057 2.637 1.073 1986 2.399 4.114 1.214 2.147 1.133 1.248 0.781 0.793 1.028 0.387 0.623 1.119 1.807 1.686 0.849 2.06 1.242 1987 3.549 5.096 1.451 1.674 1.286 1.469 0.986 1.016 1.268 0.58 1.166 1.368 2.098 2.801 0.865 2.426 1.028 1988 4.008 2.927 0.928 0.895 0.774 1.254 0.842 0.78 0.942 0.537 1.049 1.365 1.557 1.942 0.627 1.968 0.764 1989 3.928 3.389 1.362 1.591 1.124 1.555 0.849 0.825 0.998 0.568 0.762 1.548 1.972 2.008 0.81 2.031 1.11 1990 2.566 2.356 1.143 1.368 0.844 1.593 0.625 0.846 0.653 0.433 0.586 1.086 1.652 1.583 0.355 1.577 0.775 1991 2.807 3.698 1.46 1.792 1.036 1.37 0.756 1.415 1.218 0.562 1.154 1.138 1.906 2.196 0.572 2.051 0.998 1992 3.264 2.361 1.183 1.73 0.876 1.01 0.688 1.125 1.015 0.684 1.375 1.097 2.126 1.422 0.512 1.992 0.794 1993 1.869 1.556 0.933 1.019 0.575 0.63 0.426 0.507 0.392 0.369 0.83 0.755 1.522 0.728 0.332 1.181 0.753 1994 2.257 1.898 0.988 1.081 0.426 0.802 0.584 0.731 0.734 0.415 0.919 0.834 1.898 1.099 0.278 1.825 1.118 1995 3.791 3.039 1.363 2.097 0.98 1.217 1.198 1.166 1.207 0.726 1.972 1.422 2.786 2.57 0.667 2.957 1.199 1996 3.415 3.383 1.348 1.885 1.343 1.895 1.292 1.418 1.045 0.798 1.962 1.598 3.115 3.16 0.73 2.991 1.433 1997 3.662 2.138 1.343 1.936 1.444 2.11 1.045 1.281 0.767 0.64 1.625 1.498 2.354 5.94 0.762 1.915 1.613 1998 4.807 2.709 1.35 2.325 1.965 2.08 1.339 1.366 1.499 1.113 1.932 1.937 3.041 2.993 1.145 2.261 1.633 1999 3.12 2.587 1.526 1.544 1.25 1.665 0.814 1.244 1.237 1.08 1.691 1.655 2.735 2.136 0.9 2.688 1.246 2000 3.048 2.356 1.639 2.078 1.974 1.701 0.998 1.591 1.486 1.04 1.882 1.433 3.035 2.409 1.435 3.415 1.156 2001 2.319 1.991 1.309 1.244 1.12 1.226 0.531 1.489 1.545 0.858 1.224 1.183 2.367 1.547 1.045 2.425 0.727 2002 2.348 1.508 0.995 1.405 1.338 1.33 0.639 1.003 1.346 0.711 1.192 1.261 1.924 1.472 0.857 2.215 0.869 2003 2.946 2.316 1.254 1.385 1.336 1.913 0.838 1.456 1.642 0.911 1.55 1.417 2.12 1.333 1.066 2.481 1.373 2004 2.437 2.208 1.201 1.616 2.214 2.093 0.98 1.437 1.928 1.558 2.061 2.504 2.786 1.471 0.537 3.05 0.948 2005 1.861 1.726 0.946 1.235 1.949 2.142 0.779 1.058 0.997 1.225 1.472 1.233 1.469 1.292 0.729 1.859 0.452 2006 2.242 3.135 1.36 2.122 2.546 2.79 1.059 1.473 1.807 1.704 2.06 1.397 2.396 2.933 1.075 3.092 1.342 2007 2.331 2.371 0.95 1.217 1.89 2.438 1.229 1.625 1.301 1.406 1.749 1.456 1.895 3.407 0.938 2.298 1.064 2008 1.195 1.36 0.864 1.138 1.543 1.66 0.69 0.884 0.803 0.507 1.074 0.832 1.205 2.16 0.645 1.407 0.758 2009 1.796 1.824 0.842 0.864 1.03 1.719 1.161 1.105 1.33 0.817 1.224 0.942 1.757 2.188 0.588 1.872 0.689 2010 3.005 2.381 1.02 1.65 1.53 2.382 1.647 1.5 1.467 1.091 1.257 0.937 2 2.504 0.873 2.572 1.03 2011 2.892 2.58 0.904 1.298 1.341 1.893 1.196 1.598 1.589 1.093 1.644 1.271 2.141 3.08 1.004 2.811 1.02 2012 3.3 2.47 0.771 1.075 1.162 1.69 1.27 1.282 1.224 1.253 1.497 1.153 2.123 3.186 0.781 2.135 0.856 2013 3.542 3.048 1.096 1.641 1.687 1.238 0.954 1.45 1.379 1.298 1.663 1.195 2.148 3.38 1.033 2.53 1.003 2014 2.93 2.759 0.997 1.76 1.668 1.332 1.415 1.387 1.178 0.953 1.848 1.386 2.483 3.192 1.09 2.731 1.104 2015 1.899 1.874 0.61 1.156 1.13 1.458 0.904 0.806 0.889 0.677 0.87 0.96 1.78 1.925 0.645 1.208 0.753 2016 1.795 1.205 0.61 0.972 1.184 1.177 0.814 0.804 0.906 0.665 0.954 0.776 1.744 1.625 0.788 1.426 0.703