Year MBH NGDC diff 1400 NA NA NA 1401 NA NA NA 1402 NA NA NA 1403 NA NA NA 1404 NA NA NA 1405 NA NA NA 1406 NA NA NA 1407 NA NA NA 1408 NA NA NA 1409 NA NA NA 1410 NA NA NA 1411 NA NA NA 1412 NA NA NA 1413 NA NA NA 1414 NA NA NA 1415 NA NA NA 1416 NA NA NA 1417 NA NA NA 1418 NA NA NA 1419 NA NA NA 1420 NA NA NA 1421 NA NA NA 1422 NA NA NA 1423 NA NA NA 1424 NA NA NA 1425 NA NA NA 1426 NA NA NA 1427 NA NA NA 1428 2.3740001 NA NA 1429 1.829 NA NA 1430 2.9200001 NA NA 1431 2.6470001 NA NA 1432 2.7379999 NA NA 1433 1.791 NA NA 1434 2.2060001 NA NA 1435 1.424 NA NA 1436 0.93800002 NA NA 1437 1.424 NA NA 1438 1.54 NA NA 1439 0.86900002 NA NA 1440 1.006 NA NA 1441 0.755 NA NA 1442 1.2869999 NA NA 1443 1.1 NA NA 1444 1.176 NA NA 1445 1.245 NA NA 1446 1.2 NA NA 1447 1.0190001 NA NA 1448 0.73500001 NA NA 1449 0.83200002 NA NA 1450 1.017 NA NA 1451 0.80800003 NA NA 1452 0.85100001 NA NA 1453 0.66600001 NA NA 1454 1.039 NA NA 1455 0.52700001 NA NA 1456 0.5 NA NA 1457 0.49700001 NA NA 1458 0.65499997 NA NA 1459 0.60000002 NA NA 1460 0.54799998 NA NA 1461 0.375 NA NA 1462 0.375 NA NA 1463 0.433 NA NA 1464 0.30500001 NA NA 1465 0.51899999 NA NA 1466 0.375 NA NA 1467 0.551 NA NA 1468 0.30599999 NA NA 1469 0.30599999 NA NA 1470 0.38800001 NA NA 1471 0.537 NA NA 1472 0.70899999 NA NA 1473 0.79900002 NA NA 1474 0.92000002 NA NA 1475 1.102 NA NA 1476 0.829 NA NA 1477 0.94999999 NA NA 1478 1 NA NA 1479 1.011 NA NA 1480 1.102 NA NA 1481 1.011 NA NA 1482 1.011 NA NA 1483 1.102 NA NA 1484 1.113 NA NA 1485 0.94400001 NA NA 1486 0.96499997 NA NA 1487 0.98100001 NA NA 1488 1.133 NA NA 1489 0.95499998 NA NA 1490 1.023 NA NA 1491 1.279 NA NA 1492 0.89999998 NA NA 1493 1.1670001 NA NA 1494 0.75400001 NA NA 1495 0.64999998 NA NA 1496 0.83600003 NA NA 1497 0.55199999 NA NA 1498 0.713 NA NA 1499 0.92400002 NA NA 1500 0.92000002 NA NA 1501 1.054 NA NA 1502 0.91299999 NA NA 1503 0.94700003 NA NA 1504 1.053 NA NA 1505 1.383 NA NA 1506 1.193 NA NA 1507 1.41 NA NA 1508 1.403 NA NA 1509 1.4400001 NA NA 1510 1.5880001 NA NA 1511 1.527 NA NA 1512 1.228 NA NA 1513 1.126 NA NA 1514 1.076 NA NA 1515 0.92699999 NA NA 1516 0.92699999 NA NA 1517 1.202 NA NA 1518 0.85299999 NA NA 1519 0.66900003 NA NA 1520 0.52999997 NA NA 1521 0.84399998 NA NA 1522 0.514 NA NA 1523 0.64899999 NA NA 1524 0.74299997 NA NA 1525 0.74699998 NA NA 1526 0.61799997 NA NA 1527 0.81199998 NA NA 1528 0.699 NA NA 1529 0.80900002 NA NA 1530 0.91799998 NA NA 1531 0.87400001 NA NA 1532 0.80299997 NA NA 1533 0.653 NA NA 1534 0.72299999 NA NA 1535 0.82800001 NA NA 1536 0.71600002 NA NA 1537 0.70700002 NA NA 1538 0.86000001 NA NA 1539 0.68599999 NA NA 1540 1.13 NA NA 1541 1.007 NA NA 1542 0.792 NA NA 1543 1.076 NA NA 1544 0.949 NA NA 1545 0.87099999 NA NA 1546 1.075 NA NA 1547 0.89300001 NA NA 1548 0.94800001 NA NA 1549 0.71700001 NA NA 1550 1.414 NA NA 1551 1.168 NA NA 1552 1.177 NA NA 1553 1.122 NA NA 1554 1.462 NA NA 1555 1.29 NA NA 1556 1.068 NA NA 1557 1.058 NA NA 1558 1.413 NA NA 1559 1.137 NA NA 1560 1.285 NA NA 1561 1.067 NA NA 1562 1.719 NA NA 1563 1.752 NA NA 1564 1.268 NA NA 1565 1.36 NA NA 1566 1.452 NA NA 1567 1.807 NA NA 1568 1.899 NA NA 1569 1.957 NA NA 1570 1.503 NA NA 1571 1.279 NA NA 1572 1.421 NA NA 1573 1.4119999 NA NA 1574 1.02 NA NA 1575 1.252 NA NA 1576 1.386 NA NA 1577 1.679 NA NA 1578 1.411 NA NA 1579 1.239 NA NA 1580 1.224 NA NA 1581 1.057 NA NA 1582 1.363 NA NA 1583 0.94400001 NA NA 1584 1.165 NA NA 1585 1.261 NA NA 1586 1.539 NA NA 1587 0.755 NA NA 1588 0.99400002 NA NA 1589 0.792 NA NA 1590 0.94499999 NA NA 1591 0.65100002 NA NA 1592 0.84799999 NA NA 1593 0.977 NA NA 1594 1.0420001 NA NA 1595 0.442 NA NA 1596 0.79500002 NA NA 1597 0.69400001 NA NA 1598 0.75999999 NA NA 1599 0.71899998 NA NA 1600 0.61400002 NA NA 1601 0.57200003 NA NA 1602 0.64300001 NA NA 1603 0.824 NA NA 1604 0.90700001 NA NA 1605 0.68400002 NA NA 1606 0.77600002 NA NA 1607 0.79799998 NA NA 1608 0.75999999 NA NA 1609 0.81 NA NA 1610 1.11 NA NA 1611 1.0369999 NA NA 1612 0.97500002 NA NA 1613 0.74800003 NA NA 1614 1.035 NA NA 1615 0.94300002 NA NA 1616 0.963 NA NA 1617 1.09 NA NA 1618 1.052 NA NA 1619 0.83700001 NA NA 1620 1.052 NA NA 1621 0.96200001 NA NA 1622 0.94499999 NA NA 1623 0.86199999 NA NA 1624 1.0549999 NA NA 1625 0.93099999 NA NA 1626 0.921 NA NA 1627 0.741 NA NA 1628 0.95999998 NA NA 1629 0.66600001 NA NA 1630 0.83099997 NA NA 1631 0.89600003 NA NA 1632 0.792 NA NA 1633 0.79900002 NA NA 1634 0.76599997 NA NA 1635 0.759 NA NA 1636 0.92799997 NA NA 1637 1.024 NA NA 1638 1.199 NA NA 1639 1.13 NA NA 1640 1.567 NA NA 1641 0.63300002 NA NA 1642 0.82999998 NA NA 1643 1.59 NA NA 1644 1.187 NA NA 1645 1.258 NA NA 1646 1.108 NA NA 1647 1.017 NA NA 1648 1.217 NA NA 1649 0.99299997 NA NA 1650 1.395 NA NA 1651 1.1339999 NA NA 1652 1.071 NA NA 1653 1.133 NA NA 1654 1.151 NA NA 1655 1.17 NA NA 1656 1.076 NA NA 1657 1.347 NA NA 1658 1.164 NA NA 1659 1.243 NA NA 1660 1.198 NA NA 1661 1.036 NA NA 1662 1.488 NA NA 1663 0.92900002 NA NA 1664 1.098 NA NA 1665 1.169 NA NA 1666 0.99800003 NA NA 1667 0.79900002 NA NA 1668 0.96600002 NA NA 1669 0.72399998 NA NA 1670 0.62900001 NA NA 1671 0.53299999 NA NA 1672 0.92199999 NA NA 1673 0.74599999 NA NA 1674 0.63499999 NA NA 1675 0.81400001 NA NA 1676 0.73699999 NA NA 1677 0.79400003 NA NA 1678 1.008 NA NA 1679 0.64899999 NA NA 1680 0.58700001 NA NA 1681 0.741 NA NA 1682 0.662 NA NA 1683 0.65499997 NA NA 1684 0.787 NA NA 1685 0.50400001 NA NA 1686 0.93800002 NA NA 1687 0.74000001 NA NA 1688 0.62300003 NA NA 1689 0.51200002 NA NA 1690 0.74199998 NA NA 1691 0.93599999 NA NA 1692 0.73900002 NA NA 1693 0.63 NA NA 1694 0.64099997 NA NA 1695 0.66399997 NA NA 1696 1.028 NA NA 1697 1.14 NA NA 1698 0.76599997 NA NA 1699 0.58200002 NA NA 1700 0.597 NA NA 1701 0.29800001 NA NA 1702 0.60399997 NA NA 1703 0.43099999 NA NA 1704 0.47799999 NA NA 1705 0.52700001 NA NA 1706 0.66600001 NA NA 1707 0.74199998 NA NA 1708 0.82999998 NA NA 1709 0.76700002 NA NA 1710 0.95300001 NA NA 1711 0.61799997 NA NA 1712 0.76200002 NA NA 1713 1.068 NA NA 1714 0.55500001 NA NA 1715 0.86400002 NA NA 1716 0.97799999 NA NA 1717 0.73500001 NA NA 1718 0.99000001 NA NA 1719 0.81 NA NA 1720 0.73500001 NA NA 1721 0.847 NA NA 1722 0.98100001 NA NA 1723 0.62800002 NA NA 1724 1.0829999 NA NA 1725 0.85699999 NA NA 1726 1.1 NA NA 1727 1.011 NA NA 1728 1.0650001 NA NA 1729 0.78600001 NA NA 1730 1.239 NA NA 1731 0.80500001 NA NA 1732 0.92500001 NA NA 1733 1.017 NA NA 1734 1.0319999 NA NA 1735 1.331 NA NA 1736 1.465 NA NA 1737 1.044 -0.47 NA 1738 1.071 1.36 NA 1739 1.24 -1.36 NA 1740 0.74800003 0.73 NA 1741 0.83099997 -0.73 NA 1742 1.034 -0.54 NA 1743 1.029 -0.43 NA 1744 0.96899998 1.5 NA 1745 0.91799998 -0.77 NA 1746 1.011 0.35 -0.258789467751839 1747 1.058 0.06 0.0696139171988252 1748 1.077 0.55 0.239465889833804 1749 1.164 -0.6 -0.0460527980532037 1750 0.66600001 -0.86 -0.119812585436604 1751 1.477 -0.74 0.337606130655228 1752 0.89999998 0.83 0.608213360084646 1753 1.211 2.72 -0.838002780624164 1754 1.652 0.86 0.0352410426242805 1755 0.91799998 0.7 -0.386134624524687 1756 1.039 0.54 0.376153066384281 1757 1.3890001 1.44 1.13118759874467 1758 1.127 1.21 -1.56219840847257 1759 1.153 0.61 0.0964918011716962 1760 1.365 1.67 -0.0283492031364116 1761 1.141 -1.33 0.432747115968007 1762 0.87900001 -0.21 -0.0791650414510428 1763 1.005 0.35 -0.517310640418356 1764 1.0470001 2.68 0.371285964090224 1765 1.122 -0.34 -0.265784016756716 1766 1.351 -1.1 0.0174152674870638 1767 1.119 0.23 0.671742078371383 1768 1.3200001 2.71 -0.42973763694904 1769 0.801 -0.45 -0.292665519382916 1770 1.432 -0.55 0.160803498368110 1771 1.1160001 -0.79 -0.0758075002464571 1772 1.615 -0.36 0.117035727901567 1773 1.0779999 -0.44 0.228637201820447 1774 1.419 -0.45 0.033994415577501 1775 1.7410001 -0.5 -0.187231038823355 1776 1.867 -0.54 -0.0938308858065409 1777 1.952 -1.34 0.074714448643515 1778 1.575 -1.2 0.391614178124888 1779 1.59 0.44 -0.160296493323494 1780 1.26 -0.63 -0.691110153450001 1781 1.624 -0.25 0.0173484754287799 1782 0.78200001 -0.45 -0.0972443194571388 1783 1.296 -0.5 0.274619150813511 1784 1.839 -1.56 0.786051784644641 1785 0.99599999 0.24 -1.88693454857494 1786 1.3940001 0.78 -0.142098276939083 1787 1.327 1.03 -0.409666871227917 1788 1.098 -0.39 1.34099294327645 1789 1.143 0.41 -0.252917742470479 1790 1.234 -0.32 0.0402798930511518 1791 1.5779999 -0.27 0.0859615849122833 1792 0.86500001 0.54 -0.291895275483387 1793 1.822 -0.34 0.874651932390873 1794 0.847 1.37 -2.04105351345978 1795 1.015 -0.42 2.07825308546795 1796 1.2079999 -0.67 -0.165735736784681 1797 0.97899997 -0.68 0.257856571800137 1798 1.291 -0.9 0.373889706608393 1799 1.043 -0.85 -0.293500419222733 1800 1.324 1 -1.61051314757914 1801 1.132 -0.63 1.31297498848751 1802 0.95300001 -0.48 0.307189199379812 1803 1.072 0.02 -0.476176104541592 1804 1.584 -0.33 0.283294379406686 1805 1.3710001 0.12 -0.570055709300295 1806 1.602 -0.51 -0.146338616016200 1807 1.566 -0.34 0.079436154435696 1808 1.666 -0.18 -0.095989219784402 1809 1.608 0.06 1.14700499951021 1810 1.597 -0.59 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-1.80402188469698 1838 0.40700001 -1.2 2.31996161877859 1839 0.45899999 0.03 -1.31761292173962 1840 0.51499999 0.13 0.00225769276604684 1841 0.51700002 -0.8 1.17461287514572 1842 0.63599998 -0.78 -0.078861014244454 1843 0.65499997 -0.59 -0.0115069019809959 1844 0.458 -0.4 -0.165079377972158 1845 0.38600001 -0.35 -0.346191604304006 1846 0.68900001 -0.1 -0.126763922620084 1847 0.42399999 0.66 -0.755307933925119 1848 0.62699997 -0.79 1.30315733830363 1849 0.75599998 -0.38 0.0626724077039834 1850 0.96399999 -1.4 0.736476729178362 1851 0.69800001 -0.22 -1.10620393782997 1852 0.41 -1.25 1.23957218772405 1853 0.579 -0.57 -0.786306632571431 1854 0.391 -0.55 0.224626721137987 1855 0.77399999 -0.29 -0.471084466186363 1856 0.66100001 -0.24 -0.212499040582564 1857 0.54299998 -1.57 1.38590636396038 1858 0.727 2.12 -1.20315529915211 1859 0.66399997 0.59 -0.609160565131464 1860 0.57800001 -0.3 1.27423530828256 1861 0.70599997 -0.89 0.2694135238473 1862 0.62 -0.01 -1.15757557646870 1863 0.722 0.77 0.838719861213508 1864 0.52200001 -1.59 0.729832547667802 1865 0.65399998 -1.16 -0.445093044514171 1866 0.85500002 -1.74 0.603085402962849 1867 0.90899998 -0.49 -0.761161175869529 1868 0.85699999 -1 0.369220507728056 1869 0.76899999 0.83 -1.77186594242660 1870 0.66100001 -0.65 1.64274836688623 1871 0.57300001 -0.26 -0.386845241826562 1872 0.72399998 1.2 -1.57231665455405 1873 0.479 0.94 0.316936683945582 1874 0.461 1.95 -0.567196830802697 1875 0.58999997 1.02 1.51891998222184 1876 0.47499999 0.81 -0.137608133221714 1877 0.71499997 0.12 -0.0974333810423744 1878 0.847 -0.26 0.103982882251723 1879 0.71700001 0.67 -0.705195410127279 1880 0.90499997 0.72 -0.15191672015262 1881 0.62900001 2.26 -0.907210697497558 1882 0.90899998 -0.12 1.91037041253789 1883 0.74299997 -0.07 0.258270678096060 1884 0.755 0.14 -0.461688123682047 1885 0.486 -1.15 0.922855273268439 1886 0.96499997 3.16 -3.36632802105972 1887 0.70700002 -1.19 3.33598411201089 1888 0.63499999 -0.96 0.431127533538358 1889 0.69400001 2.7 -4.11418155716065 1890 0.773 2.12 1.77037221804926 1891 0.699 -0.7 1.59970106535888 1892 0.63300002 0.04 -0.639865471551558 1893 0.69099998 1.35 -1.55070419951505 1894 0.77899998 1.32 0.113489572887550 1895 0.824 1.52 0.334653966052771 1896 0.55400002 -0.42 1.38200527286158 1897 0.53200001 1.48 -2.09272370555028 1898 0.48899999 0.93 0.627131997510895 1899 1.029 -1.51 2.15178457096058 1900 0.93000001 -0.26 -1.15182583969778 1901 0.84899998 -1.93 1.6614388157975 1902 0.67400002 0.3 -1.86502188005629 1903 0.55400002 -0.93 1.13156617930368 1904 0.78799999 -0.52 -0.559632854275586 1905 0.634 1.36 -1.77432507162075 1906 1.102 -0.43 2.04358757773115 1907 0.94199997 -0.27 -0.174001310051554 1908 0.95700002 -0.42 -0.155499720043218 1909 1.132 1.78 -2.03668622961671 1910 1.057 0.36 1.37810727642862 1911 0.90600002 -0.22 0.798733647633946 1912 0.87800002 0.93 -0.686991751622345 1913 1.863 0.38 0.0488956737803013 1914 0.83499998 -1.13 1.40146939698136 1915 1.174 -0.56 -0.667461407329109 1916 0.77899998 0.77 -1.35396110785825 1917 0.93599999 1.2 -0.267233554733705 1918 0.5 -0.74 2.0175459247121 1919 0.96499997 -0.75 -0.108138552235142 1920 0.63700002 -0.77 0.0690818289499057 1921 0.83899999 0.05 -0.698240416201264 1922 0.84100002 -1.12 1.24322844753855 1923 1.124 -0.47 -0.687698762245229 1924 1.036 -0.37 -0.296737435989696 1925 0.95899999 -0.42 0.208400430763496 1926 0.95200002 0.16 0.0208775436213581 1927 1.3049999 -0.15 -0.196394278968370 1928 0.884 -0.15 0.0374597425736051 1929 0.84100002 0.42 -0.277644832614803 1930 1.478 -1.47 1.54623714615645 1931 0.87199998 -0.98 -0.377918477600679 1932 0.93199998 -1.14 -0.0432942526541347 1933 0.95899999 -0.3 -0.36421341577912 1934 1.086 0 -0.0575578543599934 1935 1.464 0.45 -0.66327865240382 1936 1.413 0.66 -0.141618311061518 1937 1.376 -1.34 1.74938554585320 1938 1.3609999 -0.53 -0.809776662295026 1939 0.89099997 2.38 -2.86280073800020 1940 1.52 0.88 2.06626824626229 1941 1.329 -0.12 0.377715098462580 1942 0.85799998 -0.62 0.826158162070014 1943 1.161 -0.08 -0.89360067038972 1944 1.072 0.1 -0.134314179397407 1945 1.696 0.26 -0.252861914140395 1946 1.448 0.55 0.00644527983782117 1947 0.889 -0.82 0.929254052470937 1948 1.5470001 -0.28 -0.263269931838272 1949 0.935 0.69 -1.00969820619296 1950 1.316 -0.53 1.83834823743449 1951 1.242 -0.93 0.112789530529149 1952 1.153 -0.26 -1.03387860812493 1953 1.571 0.06 0.136789942698973 1954 1.6 1.78 -1.01659235573944 1955 1.516 2.62 -0.633001173392077 1956 1.636 -0.08 1.73087487541106 1957 1.4809999 1.87 -2.25108747894438 1958 1.656 -0.21 1.84409330545459 1959 1.487 -0.26 0.300955956412206 1960 1.609 -0.03 0.0891879057513 1961 1.558 -0.47 -0.0433596579717916 1962 1.029 0.76 -1.02999528137891 1963 1.358 -1.58 2.06826413368596 1964 1.244 -1.01 -0.297271064523105 1965 1.261 -1.3 0.337011964873663 1966 1.283 -0.2 -1.02669449537348 1967 1.02 1.13 -1.16645067807337 1968 1.515 -1.5 2.27074949168786 1969 1.4349999 -0.93 -0.47413269377389 1970 1.359 -0.14 -0.587416375591219 1971 1.303 0.72 -0.0571997047474178 1972 1.388 -0.47 0.48937388412749 1973 1.46 2.88 -3.56893152441028 1974 1.6289999 0.44 2.36048133129638 1975 1.613 0.93 -0.342130822551193 1976 1.176 1.62 -0.313996752885080 1977 1.573 -0.11 1.45911751435777 1978 1.573 0.72 -0.930488191915737 1979 1.573 -1.03 1.64502663159075 1980 1.573 -0.47 -0.790258981165908 1981 NA NA NA 1982 NA NA NA 1983 NA NA NA 1984 NA NA NA 1985 NA NA NA 1986 NA NA NA 1987 NA NA NA 1988 NA NA NA 1989 NA NA NA 1990 NA NA NA 1991 NA NA NA 1992 NA NA NA 1993 NA NA NA 1994 NA NA NA