# Stahle - Blackwater River - TADI - ITRDB VA021 #---------------------------------------------------- # 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/4817 # 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-4817.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/va021a-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; va021a-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/va021a.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2002-07-01 #-------------------- # File_Last_Modified_Date # Date: 2002-07-01 #-------------------- # Title # Study_Name: Stahle - Blackwater River - TADI - ITRDB VA021 #-------------------- # Investigators # Investigators: Stahle, D.W.; Cleaveland, M.K. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08. #-------------------- # Publication # Authors: Daniel K. Stahle, Dorian J. Burnette, David W. Stahle # Journal_Name: Estuaries and Coasts # Published_Title: A Moisture Balance Reconstruction for the Drainage Basin of Albemarle Sound, North Carolina # Published_Date_or_Year: 2013 # Volume: 36 # Pages: 1340-1353 # Issue: 6 # Report_Number: # DOI: 10.1007/s12237-013-9643-y # Full_Citation: None # Abstract: Freshwater discharge into Albemarle Sound and many other large estuaries can have a major impact on the physical and biological properties of the estuary. Earlywood (EW) and latewood (LW) width tree ring chronologies recently developed from ancient trees and sub-fossil logs found at Devil's Gut of the Roanoke River, North Carolina, were used with new EW and LW width data from Blackwater River, Virginia, to reconstruct the July Palmer Hydrological Drought Index (PHDI) over the drainage basin of Albemarle Sound from 934 to 2005. This reconstruction is based on a principal component regression using millennium-long chronologies of both EW and LW widths, calibrated and verified against instrumental July PHDI from 1895 to 1985. The reconstruction provides a lengthy representation of inter-annual to multi-decadal growing season moisture variability that directly affects water quality in the Albemarle Sound estuarine ecosystem. Single-year drought and wetness extremes were more common in the modern instrumental period (1895-2005), but prolonged droughts reconstructed during the Medieval and Early Colonial eras were more severe and sustained than the reconstructed or observed droughts during the twentieth century. Several abrupt transitions between decadal drought and wetness regimes are reconstructed, especially during the Medieval Era. Composite analysis of lower-magnitude sub-decadal regime shifts in the instrumental record during the twentieth century indicates that major changes in mid-latitude circulation over the Northern Hemisphere may have been involved in these longer decadal transitions between moisture regimes over Albemarle Sound in prehistory. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: Blackwater River # Location: Virginia # Northernmost_Latitude: 36.78 # Southernmost_Latitude: 36.78 # Easternmost_Longitude: -76.88 # Westernmost_Longitude: -76.88 # Elevation_m: 9 #-------------------- # Data_Collection # Collection_Name: VA021 # First_Year: 932 # Last_Year: 1985 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: None #-------------------- # Species # Species_Name: Taxodium distichum (L.) Rich. # Common_Name: baldcypress # Tree_Species_Code: TADI #-------------------- # 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, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard chronology method,N, ## numsamp number of samples,,,count,,tree ring,,,N, #--------------------- # Data: # Missing_Values: NA age_CE trsgi numsamp 933 0.763 2 934 1.358 2 935 1.217 2 936 1.453 2 937 0.577 2 938 1.126 2 939 1.209 2 940 0.691 2 941 0.745 2 942 1.398 2 943 1.392 2 944 0.875 2 945 0.822 2 946 0.791 2 947 1.455 2 948 0.883 3 949 1.359 3 950 0.766 3 951 1.352 3 952 0.535 3 953 0.355 3 954 0.562 3 955 1.371 3 956 1.426 4 957 0.976 4 958 0.74 4 959 0.553 4 960 0.3 4 961 0.446 4 962 1.073 4 963 1.29 4 964 1.21 4 965 1.024 4 966 1.354 4 967 0.998 4 968 0.573 4 969 0.926 4 970 0.937 4 971 1.365 4 972 2.109 4 973 1.829 4 974 1.271 4 975 0.838 4 976 0.575 4 977 1.07 4 978 1.346 4 979 0.811 4 980 0.201 4 981 0.381 4 982 0.29 4 983 0.583 4 984 0.685 5 985 0.778 5 986 1.501 5 987 1.379 5 988 0.279 5 989 0.992 5 990 0.167 5 991 0.556 5 992 1.32 5 993 1.059 5 994 0.973 5 995 0.716 5 996 0.843 5 997 0.599 5 998 0.575 5 999 0.176 5 1000 0.445 5 1001 0.546 5 1002 0.6 5 1003 0.467 5 1004 0.53 5 1005 0.577 5 1006 0.793 5 1007 1.201 5 1008 0.501 5 1009 0.41 5 1010 0.875 5 1011 1.153 5 1012 0.844 5 1013 1.11 5 1014 0.925 5 1015 0.749 5 1016 1.189 5 1017 1.064 5 1018 1.043 5 1019 1.23 5 1020 1.055 5 1021 1.085 5 1022 1.124 5 1023 0.352 5 1024 0.889 5 1025 0.471 5 1026 0.491 5 1027 0.485 5 1028 0.83 5 1029 0.741 5 1030 0.795 5 1031 1.354 5 1032 0.923 5 1033 1.073 5 1034 0.637 5 1035 0.879 6 1036 1.073 6 1037 1.031 6 1038 1.092 6 1039 0.886 6 1040 0.746 6 1041 0.345 6 1042 0.87 6 1043 0.435 6 1044 0.611 6 1045 0.474 6 1046 0.551 6 1047 0.571 6 1048 0.767 6 1049 0.487 6 1050 0.796 6 1051 0.664 6 1052 0.868 6 1053 0.866 6 1054 0.753 7 1055 0.464 7 1056 0.918 7 1057 0.966 7 1058 0.649 7 1059 0.933 7 1060 0.631 9 1061 0.759 9 1062 1.077 9 1063 0.621 9 1064 0.499 9 1065 0.957 9 1066 1.169 9 1067 0.764 9 1068 0.613 9 1069 0.835 9 1070 0.934 9 1071 0.716 9 1072 0.922 9 1073 0.995 9 1074 1.013 9 1075 1.774 9 1076 0.934 9 1077 1.072 9 1078 1.216 9 1079 1.717 9 1080 1.424 9 1081 0.84 9 1082 0.89 9 1083 0.773 9 1084 1.274 9 1085 0.978 9 1086 1.96 9 1087 1.966 9 1088 2.023 9 1089 1.745 9 1090 2.257 9 1091 2.551 9 1092 1.434 9 1093 1.499 9 1094 0.537 9 1095 2.211 9 1096 1.47 9 1097 0.828 9 1098 1.263 9 1099 1.203 9 1100 1.428 9 1101 1.665 9 1102 1.284 9 1103 1.456 9 1104 1.024 11 1105 0.918 11 1106 0.86 11 1107 1.367 11 1108 0.997 11 1109 0.779 11 1110 0.919 11 1111 1.244 11 1112 0.918 11 1113 1.042 11 1114 1.194 11 1115 0.909 11 1116 0.746 11 1117 1.192 11 1118 0.927 11 1119 1.259 11 1120 1.112 11 1121 1.94 11 1122 1.869 11 1123 1.057 11 1124 1.329 11 1125 0.812 11 1126 0.568 11 1127 1.047 11 1128 0.959 11 1129 0.579 11 1130 0.879 11 1131 1.196 11 1132 1.032 11 1133 1.514 11 1134 0.814 11 1135 0.851 11 1136 0.639 11 1137 1.279 11 1138 1.138 11 1139 1.2 11 1140 1.321 11 1141 1.285 11 1142 0.638 11 1143 1.013 11 1144 0.476 11 1145 0.921 11 1146 0.907 11 1147 0.888 11 1148 0.848 11 1149 0.522 11 1150 0.884 11 1151 0.91 11 1152 1.042 11 1153 0.828 11 1154 1.009 11 1155 0.572 11 1156 1.617 11 1157 1.264 11 1158 1.509 11 1159 0.668 11 1160 1.249 11 1161 1.21 11 1162 0.975 11 1163 1.137 11 1164 1.151 11 1165 0.791 11 1166 0.859 11 1167 0.939 11 1168 1.066 11 1169 0.822 11 1170 0.599 11 1171 0.798 11 1172 0.751 11 1173 0.71 11 1174 0.559 11 1175 0.806 11 1176 0.63 11 1177 0.711 11 1178 0.524 11 1179 0.584 11 1180 0.703 11 1181 0.621 13 1182 0.472 13 1183 0.79 13 1184 0.844 13 1185 0.662 13 1186 1.032 13 1187 0.766 13 1188 1.009 13 1189 1.03 13 1190 1.09 13 1191 0.709 13 1192 0.738 13 1193 0.86 13 1194 0.588 14 1195 0.723 14 1196 1.102 14 1197 0.811 14 1198 0.684 14 1199 0.903 14 1200 0.889 14 1201 1.366 14 1202 1.341 14 1203 1.031 14 1204 1.193 14 1205 1.204 14 1206 1.013 14 1207 1.103 14 1208 0.548 14 1209 0.626 14 1210 0.603 15 1211 0.243 15 1212 0.696 16 1213 0.953 16 1214 0.794 16 1215 0.678 16 1216 1.477 16 1217 1.065 16 1218 1.113 16 1219 1.245 16 1220 0.784 16 1221 0.675 17 1222 1.017 17 1223 0.678 17 1224 1.547 17 1225 1.244 18 1226 0.885 18 1227 0.876 21 1228 2.249 21 1229 1.873 21 1230 1.325 21 1231 0.829 21 1232 1.303 22 1233 0.996 22 1234 1.066 22 1235 1.192 22 1236 0.462 22 1237 0.677 22 1238 0.62 22 1239 1.402 22 1240 0.572 22 1241 0.836 22 1242 0.801 22 1243 1.348 22 1244 1.126 22 1245 0.75 22 1246 1.395 22 1247 0.689 22 1248 1.164 23 1249 1.229 23 1250 0.743 23 1251 0.797 24 1252 0.92 24 1253 0.821 25 1254 0.724 25 1255 0.755 25 1256 0.992 25 1257 0.664 25 1258 0.988 25 1259 0.55 26 1260 0.653 27 1261 0.884 27 1262 0.927 27 1263 0.61 27 1264 1.155 27 1265 0.892 27 1266 1.011 27 1267 0.825 27 1268 0.799 27 1269 0.768 27 1270 0.5 27 1271 0.753 27 1272 0.977 27 1273 0.767 27 1274 0.985 27 1275 0.629 27 1276 0.77 29 1277 0.859 29 1278 1.218 29 1279 1.286 29 1280 1.832 29 1281 1.648 29 1282 1.81 29 1283 0.898 29 1284 0.918 29 1285 1.025 29 1286 1.755 29 1287 0.767 29 1288 1.166 29 1289 1.316 29 1290 1.371 29 1291 1.797 29 1292 1.141 29 1293 1.059 29 1294 0.925 29 1295 1.367 30 1296 0.343 30 1297 1.152 30 1298 1.147 30 1299 1.334 30 1300 1.309 30 1301 1.111 30 1302 0.947 30 1303 1.106 30 1304 1.629 32 1305 1.424 32 1306 0.966 32 1307 0.878 32 1308 0.989 32 1309 0.923 33 1310 0.743 33 1311 0.823 33 1312 0.58 33 1313 1.126 33 1314 1.161 33 1315 1.077 34 1316 1.669 34 1317 1.385 34 1318 0.649 34 1319 0.797 34 1320 0.986 34 1321 1.021 34 1322 0.876 34 1323 0.677 33 1324 0.353 33 1325 0.996 33 1326 1.267 33 1327 1.244 33 1328 1.468 33 1329 1.136 33 1330 1.178 33 1331 1.587 33 1332 1.106 33 1333 1.054 33 1334 1.475 33 1335 0.587 33 1336 0.59 33 1337 0.48 33 1338 1.626 33 1339 2.066 33 1340 1.843 33 1341 1.709 29 1342 1.228 29 1343 1.177 29 1344 1.015 30 1345 1.142 30 1346 1.144 30 1347 0.469 30 1348 0.543 30 1349 0.989 30 1350 1.212 30 1351 0.538 30 1352 0.818 30 1353 0.986 30 1354 0.751 30 1355 0.964 30 1356 0.603 29 1357 0.76 29 1358 0.983 29 1359 1.021 29 1360 0.732 29 1361 1.196 29 1362 1.223 29 1363 1.464 29 1364 0.775 29 1365 1.004 29 1366 1.688 29 1367 0.718 29 1368 0.505 30 1369 0.854 30 1370 1.028 30 1371 0.914 30 1372 0.415 30 1373 0.972 30 1374 1.755 32 1375 1.245 32 1376 1.022 32 1377 2.11 32 1378 1.075 32 1379 1.267 32 1380 0.938 32 1381 1.517 32 1382 1.091 32 1383 1.805 32 1384 0.72 32 1385 1.316 32 1386 1.225 32 1387 0.899 32 1388 1.022 32 1389 0.556 32 1390 1.29 32 1391 0.842 32 1392 0.692 32 1393 0.844 32 1394 0.796 32 1395 0.86 32 1396 0.986 32 1397 0.884 32 1398 0.868 32 1399 0.691 32 1400 0.751 32 1401 0.268 30 1402 0.992 30 1403 1.015 30 1404 1.007 30 1405 0.963 30 1406 0.748 30 1407 0.956 30 1408 0.607 30 1409 0.621 30 1410 0.911 30 1411 0.692 30 1412 0.677 30 1413 0.737 30 1414 0.89 30 1415 1.194 30 1416 0.288 30 1417 0.812 30 1418 0.815 30 1419 0.666 30 1420 0.8 31 1421 0.623 31 1422 1.614 31 1423 1.355 31 1424 2.119 32 1425 0.658 32 1426 0.596 32 1427 0.631 32 1428 1.415 32 1429 1.718 32 1430 1.394 32 1431 0.709 32 1432 1.527 31 1433 0.993 31 1434 1.211 31 1435 1.255 31 1436 0.924 31 1437 1.63 31 1438 0.946 31 1439 0.933 31 1440 1.491 31 1441 1.055 32 1442 0.84 32 1443 1.526 32 1444 1.26 32 1445 1.115 32 1446 0.989 32 1447 0.968 33 1448 0.942 33 1449 1.09 33 1450 1.084 33 1451 0.743 33 1452 0.874 33 1453 0.52 32 1454 0.763 33 1455 0.33 33 1456 0.822 35 1457 1.704 35 1458 1.175 35 1459 1.703 36 1460 1.367 36 1461 1.051 36 1462 0.899 36 1463 0.971 37 1464 0.795 37 1465 0.987 38 1466 0.916 38 1467 0.925 38 1468 0.855 38 1469 0.887 38 1470 0.953 38 1471 0.794 38 1472 0.52 38 1473 0.833 38 1474 0.645 38 1475 1.167 38 1476 1.298 38 1477 1.532 38 1478 1.255 38 1479 0.957 38 1480 1.227 38 1481 1.101 38 1482 1.259 38 1483 1.036 38 1484 1.265 38 1485 1.243 37 1486 0.543 37 1487 1.232 37 1488 1.182 37 1489 1.025 37 1490 0.603 37 1491 0.694 37 1492 1.057 37 1493 1.5 37 1494 1.003 37 1495 1.094 37 1496 0.929 37 1497 0.878 37 1498 1.048 37 1499 0.937 37 1500 0.94 37 1501 0.624 36 1502 0.945 36 1503 1.022 36 1504 0.793 37 1505 0.558 37 1506 1.056 37 1507 1.308 37 1508 1.447 37 1509 0.745 37 1510 1.553 37 1511 1.148 37 1512 1.041 37 1513 1.232 37 1514 1.154 37 1515 1.038 37 1516 1.292 37 1517 1.093 37 1518 0.812 37 1519 0.92 37 1520 0.498 36 1521 0.686 36 1522 0.846 36 1523 1.01 36 1524 1.542 36 1525 0.742 34 1526 0.756 34 1527 1.005 34 1528 1.537 34 1529 1.25 34 1530 1.463 34 1531 1.026 34 1532 1.429 34 1533 0.731 34 1534 0.707 34 1535 0.565 34 1536 0.877 36 1537 0.941 36 1538 0.684 36 1539 0.724 36 1540 1.071 36 1541 1.57 36 1542 1.097 36 1543 1.744 36 1544 1.07 36 1545 1.108 36 1546 0.969 36 1547 0.841 36 1548 0.966 36 1549 1.012 36 1550 0.961 36 1551 0.712 35 1552 0.609 35 1553 1.361 35 1554 1.323 35 1555 0.986 35 1556 1.36 35 1557 1.089 33 1558 0.936 33 1559 0.957 33 1560 0.929 33 1561 1.488 33 1562 0.819 33 1563 0.861 33 1564 1.147 33 1565 0.881 34 1566 0.533 34 1567 0.853 34 1568 0.632 34 1569 0.97 34 1570 1.151 34 1571 0.936 33 1572 0.682 33 1573 1.041 33 1574 0.894 33 1575 1.014 34 1576 1.433 34 1577 1.628 34 1578 1.272 34 1579 1.464 34 1580 0.983 34 1581 1.137 34 1582 0.792 35 1583 1.284 35 1584 1.233 35 1585 1.442 35 1586 0.588 35 1587 0.304 35 1588 0.559 35 1589 0.653 35 1590 1.272 35 1591 0.88 35 1592 0.884 35 1593 0.97 35 1594 1.231 35 1595 0.928 35 1596 0.856 36 1597 0.724 36 1598 0.842 36 1599 0.663 36 1600 1.367 36 1601 1.326 36 1602 1.447 36 1603 1.295 35 1604 1.186 37 1605 1.582 37 1606 0.699 37 1607 0.872 37 1608 0.655 37 1609 0.797 37 1610 0.644 37 1611 1.081 37 1612 1.066 37 1613 1.432 37 1614 0.955 38 1615 1.084 38 1616 0.714 39 1617 1.287 39 1618 0.778 39 1619 0.975 39 1620 0.594 39 1621 0.685 39 1622 1.139 39 1623 0.826 39 1624 0.896 38 1625 0.674 38 1626 1.104 38 1627 0.662 39 1628 0.751 39 1629 0.944 39 1630 0.822 39 1631 0.734 39 1632 0.712 39 1633 0.725 39 1634 0.667 39 1635 0.906 39 1636 0.857 39 1637 0.557 39 1638 0.432 39 1639 1.357 39 1640 1.16 39 1641 1.15 39 1642 1.341 39 1643 1.088 42 1644 0.891 42 1645 1.428 42 1646 0.947 42 1647 1.139 42 1648 0.678 42 1649 1.228 42 1650 0.619 42 1651 0.879 42 1652 0.852 42 1653 0.674 42 1654 0.777 43 1655 1.085 43 1656 1.289 43 1657 0.913 43 1658 1.159 43 1659 0.973 43 1660 0.684 43 1661 0.874 43 1662 0.898 43 1663 0.763 43 1664 0.885 43 1665 1.027 43 1666 0.723 43 1667 1.03 42 1668 0.951 42 1669 1.143 42 1670 0.604 42 1671 0.989 42 1672 0.661 42 1673 1.043 42 1674 0.703 42 1675 0.89 42 1676 0.351 42 1677 1.019 42 1678 0.827 42 1679 0.724 42 1680 1.529 42 1681 1.392 42 1682 1.093 42 1683 1.177 42 1684 2.246 43 1685 0.77 43 1686 1.016 43 1687 0.809 43 1688 0.874 43 1689 1.205 43 1690 1.375 43 1691 0.677 43 1692 1.137 43 1693 1.069 43 1694 0.927 43 1695 1.099 43 1696 0.975 43 1697 1.159 43 1698 0.919 43 1699 0.445 43 1700 1.016 43 1701 1.229 43 1702 1.552 43 1703 0.663 43 1704 1.163 43 1705 0.766 43 1706 0.844 43 1707 0.638 43 1708 0.539 43 1709 0.666 43 1710 0.833 43 1711 1.015 43 1712 1.007 43 1713 0.849 43 1714 0.575 43 1715 1.029 43 1716 1.493 43 1717 1.653 43 1718 1.19 43 1719 1.314 43 1720 1.093 43 1721 1.509 43 1722 1.102 43 1723 1.964 43 1724 1.977 43 1725 1.555 43 1726 0.75 43 1727 1.683 43 1728 0.944 44 1729 2.067 44 1730 1.272 44 1731 1.27 44 1732 1.587 44 1733 1.025 44 1734 1.519 46 1735 1.155 46 1736 1.331 46 1737 1.037 46 1738 0.809 46 1739 1.196 46 1740 1.241 46 1741 0.969 46 1742 0.966 46 1743 1.015 47 1744 1.238 47 1745 1.557 47 1746 1.302 47 1747 0.8 47 1748 0.807 47 1749 1.223 47 1750 1.03 47 1751 1.462 47 1752 1.149 47 1753 1.77 47 1754 1.447 47 1755 0.918 48 1756 0.911 48 1757 1.952 48 1758 1.214 48 1759 0.956 48 1760 2.182 48 1761 1.547 47 1762 1.066 47 1763 1.026 46 1764 0.88 46 1765 0.483 46 1766 1.234 45 1767 0.606 45 1768 1.188 45 1769 0.902 45 1770 1.253 45 1771 1.039 44 1772 0.718 44 1773 1.267 44 1774 1.088 44 1775 0.834 44 1776 1.046 43 1777 1.097 43 1778 1.339 43 1779 0.856 43 1780 0.508 43 1781 0.685 43 1782 0.859 43 1783 1.165 43 1784 1.181 43 1785 0.939 43 1786 1.414 42 1787 1.015 42 1788 1.082 42 1789 0.853 42 1790 1 42 1791 0.567 42 1792 0.686 42 1793 1.366 42 1794 0.78 42 1795 0.952 41 1796 1.602 41 1797 0.628 41 1798 1.209 41 1799 0.721 41 1800 1.251 41 1801 1.276 41 1802 1.055 41 1803 0.837 41 1804 0.885 41 1805 0.552 41 1806 0.442 41 1807 0.843 41 1808 0.694 41 1809 0.633 41 1810 0.827 41 1811 0.482 39 1812 0.96 39 1813 0.752 39 1814 1.023 39 1815 0.848 39 1816 0.911 39 1817 1.618 39 1818 1.143 39 1819 0.913 39 1820 0.737 39 1821 0.856 39 1822 0.584 39 1823 0.956 39 1824 1.105 39 1825 1.006 39 1826 0.771 39 1827 1.174 39 1828 1.389 39 1829 1.278 39 1830 0.838 39 1831 0.965 39 1832 0.9 39 1833 0.997 39 1834 1.089 39 1835 0.986 39 1836 0.842 39 1837 0.38 39 1838 0.721 39 1839 1.166 39 1840 1.288 39 1841 0.805 39 1842 1.435 39 1843 1.079 39 1844 0.855 39 1845 0.657 38 1846 1.239 38 1847 0.795 38 1848 0.639 38 1849 0.532 38 1850 0.771 38 1851 0.961 38 1852 0.546 38 1853 1.177 38 1854 0.952 38 1855 1.198 38 1856 0.485 38 1857 0.498 38 1858 0.528 38 1859 0.889 38 1860 0.937 38 1861 1.001 38 1862 1.155 38 1863 1.364 38 1864 0.456 38 1865 0.982 38 1866 0.702 38 1867 1.476 38 1868 1.259 37 1869 0.887 37 1870 1.457 37 1871 1.056 37 1872 1.28 37 1873 1.291 37 1874 1.352 37 1875 1.008 37 1876 1.106 37 1877 1.435 37 1878 1.02 37 1879 0.844 37 1880 0.689 37 1881 1.003 37 1882 1.048 37 1883 1.135 37 1884 1.601 37 1885 1.121 37 1886 1.948 36 1887 0.717 36 1888 1.209 36 1889 1.766 36 1890 1.317 36 1891 1.304 36 1892 1.424 36 1893 0.866 36 1894 1.007 36 1895 0.916 36 1896 1.422 35 1897 0.703 35 1898 1.282 35 1899 1.077 35 1900 0.616 35 1901 0.868 35 1902 0.701 35 1903 1.827 35 1904 0.942 35 1905 1.256 35 1906 1.209 35 1907 1.254 35 1908 1.186 35 1909 1.054 35 1910 1.195 35 1911 0.604 35 1912 0.587 35 1913 1.128 35 1914 1.129 35 1915 0.896 35 1916 0.761 35 1917 1.155 35 1918 0.842 35 1919 1.075 35 1920 0.837 35 1921 0.772 35 1922 1.204 34 1923 0.596 34 1924 1.007 34 1925 0.649 34 1926 1.168 34 1927 1.342 34 1928 1.086 34 1929 1.252 34 1930 0.97 34 1931 0.506 34 1932 0.679 34 1933 1.056 34 1934 1.217 34 1935 1.146 33 1936 0.98 33 1937 1.136 33 1938 1.455 33 1939 1.058 33 1940 0.705 33 1941 0.817 33 1942 0.563 33 1943 0.852 33 1944 0.46 33 1945 1.151 32 1946 1.334 32 1947 0.942 32 1948 0.801 32 1949 0.935 32 1950 1.102 32 1951 0.817 32 1952 0.605 32 1953 0.801 32 1954 1.181 32 1955 1.063 32 1956 1.203 32 1957 0.927 32 1958 1.202 32 1959 0.791 32 1960 1.007 32 1961 0.778 32 1962 1.207 32 1963 0.917 32 1964 0.918 32 1965 1.058 32 1966 0.738 32 1967 1.185 32 1968 1.242 32 1969 1.454 32 1970 1.056 32 1971 1.032 32 1972 0.897 32 1973 1.321 32 1974 1.217 32 1975 1.513 32 1976 0.913 32 1977 0.603 32 1978 1.458 32 1979 0.994 32 1980 0.729 32 1981 0.864 32 1982 1.148 32 1983 0.943 31 1984 1.394 31 1985 1.054 31