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	NA	NA	NA
1429	NA	NA	NA
1430	NA	NA	NA
1431	NA	NA	NA
1432	NA	NA	NA
1433	NA	NA	NA
1434	NA	NA	NA
1435	NA	NA	NA
1436	NA	NA	NA
1437	NA	NA	NA
1438	NA	NA	NA
1439	NA	NA	NA
1440	NA	NA	NA
1441	NA	NA	NA
1442	NA	NA	NA
1443	NA	NA	NA
1444	NA	NA	NA
1445	NA	NA	NA
1446	NA	NA	NA
1447	NA	NA	NA
1448	NA	NA	NA
1449	NA	NA	NA
1450	NA	NA	NA
1451	NA	NA	NA
1452	NA	NA	NA
1453	NA	NA	NA
1454	NA	NA	NA
1455	NA	NA	NA
1456	NA	NA	NA
1457	NA	NA	NA
1458	NA	NA	NA
1459	NA	NA	NA
1460	NA	NA	NA
1461	NA	NA	NA
1462	NA	NA	NA
1463	NA	NA	NA
1464	NA	NA	NA
1465	NA	NA	NA
1466	NA	NA	NA
1467	NA	NA	NA
1468	NA	NA	NA
1469	NA	NA	NA
1470	NA	NA	NA
1471	NA	NA	NA
1472	NA	NA	NA
1473	NA	NA	NA
1474	NA	NA	NA
1475	NA	NA	NA
1476	NA	NA	NA
1477	NA	NA	NA
1478	NA	NA	NA
1479	NA	NA	NA
1480	NA	NA	NA
1481	NA	NA	NA
1482	NA	NA	NA
1483	NA	NA	NA
1484	NA	NA	NA
1485	NA	NA	NA
1486	NA	NA	NA
1487	NA	NA	NA
1488	NA	NA	NA
1489	NA	NA	NA
1490	NA	NA	NA
1491	NA	NA	NA
1492	NA	NA	NA
1493	NA	NA	NA
1494	NA	NA	NA
1495	NA	NA	NA
1496	NA	NA	NA
1497	NA	NA	NA
1498	NA	NA	NA
1499	NA	NA	NA
1500	NA	NA	NA
1501	NA	NA	NA
1502	NA	NA	NA
1503	NA	NA	NA
1504	NA	NA	NA
1505	NA	NA	NA
1506	NA	NA	NA
1507	NA	NA	NA
1508	NA	NA	NA
1509	NA	NA	NA
1510	NA	NA	NA
1511	NA	NA	NA
1512	NA	NA	NA
1513	NA	NA	NA
1514	NA	NA	NA
1515	NA	NA	NA
1516	NA	NA	NA
1517	NA	NA	NA
1518	NA	NA	NA
1519	NA	NA	NA
1520	NA	NA	NA
1521	NA	NA	NA
1522	NA	NA	NA
1523	NA	NA	NA
1524	NA	NA	NA
1525	NA	NA	NA
1526	NA	NA	NA
1527	NA	NA	NA
1528	NA	NA	NA
1529	NA	NA	NA
1530	NA	NA	NA
1531	NA	NA	NA
1532	NA	NA	NA
1533	NA	NA	NA
1534	NA	NA	NA
1535	NA	NA	NA
1536	NA	NA	NA
1537	NA	NA	NA
1538	NA	NA	NA
1539	NA	NA	NA
1540	NA	NA	NA
1541	NA	NA	NA
1542	NA	NA	NA
1543	NA	NA	NA
1544	NA	NA	NA
1545	NA	NA	NA
1546	NA	NA	NA
1547	NA	NA	NA
1548	NA	NA	NA
1549	NA	NA	NA
1550	NA	NA	NA
1551	NA	NA	NA
1552	NA	NA	NA
1553	NA	NA	NA
1554	NA	NA	NA
1555	NA	NA	NA
1556	NA	NA	NA
1557	NA	NA	NA
1558	NA	NA	NA
1559	NA	NA	NA
1560	NA	NA	NA
1561	NA	NA	NA
1562	NA	NA	NA
1563	NA	NA	NA
1564	NA	NA	NA
1565	NA	NA	NA
1566	NA	NA	NA
1567	NA	NA	NA
1568	NA	NA	NA
1569	NA	NA	NA
1570	NA	NA	NA
1571	NA	NA	NA
1572	NA	NA	NA
1573	NA	NA	NA
1574	NA	NA	NA
1575	NA	NA	NA
1576	NA	NA	NA
1577	NA	NA	NA
1578	NA	NA	NA
1579	NA	NA	NA
1580	NA	NA	NA
1581	NA	NA	NA
1582	NA	NA	NA
1583	NA	NA	NA
1584	NA	NA	NA
1585	NA	1292	NA
1586	0.92000002	929	-8.99997999999994
1587	0.85399997	901	-47.0000299999999
1588	1.266	1132	134
1589	1.145	1016	129
1590	0.93599999	859	76.99999
1591	1.161	1119	42
1592	0.884	962	-78
1593	0.41600001	448	-31.99999
1594	0.61900002	628	-8.99998000000005
1595	0.81	812	-2
1596	0.917	888	29
1597	1.064	1039	25
1598	1.253	1259	-6
1599	1.528	1460	68
1600	1.212	1195	17
1601	1.323	1162	161
1602	1.146	943	203
1603	0.87699997	868	8.99996999999996
1604	1.01	1021	-11
1605	1.051	1099	-48
1606	1.0319999	1015	16.9999000000000
1607	0.884	884	0
1608	0.764	822	-58
1609	0.89999998	979	-79.00002
1610	0.76599997	908	-142.00003
1611	0.95899999	1008	-49.00001
1612	1.132	1127	5
1613	0.95599997	925	30.9999700000001
1614	1.053	1050	3
1615	0.84899998	941	-92.00002
1616	1.0369999	1086	-49.0001
1617	0.95300001	988	-34.99999
1618	0.884	928	-44
1619	0.82200003	797	25.0000300000000
1620	0.81099999	836	-25.0000100000000
1621	1.101	1096	5
1622	0.83499998	747	87.99998
1623	1.1849999	1095	89.9999
1624	1.118	1066	52
1625	0.889	799	90
1626	1.049	1010	39
1627	1.1109999	927	183.9999
1628	1.4299999	1307	122.9999
1629	1.314	1220	94
1630	1.5700001	1403	167.0001
1631	1.1619999	1114	47.9999
1632	1.732	1725	7
1633	1.4220001	1408	14.0001000000000
1634	1.392	1382	10
1635	1.012	982	30
1636	1.335	1378	-43
1637	1.388	1311	77
1638	1.279	1160	119
1639	1.036	970	66
1640	0.91600001	892	24.0000100000000
1641	0.838	833	5
1642	0.63700002	663	-25.9999800000001
1643	0.69800001	718	-19.9999900000000
1644	0.78200001	834	-51.99999
1645	0.73500001	855	-119.99999
1646	0.58600003	701	-114.99997
1647	0.82300001	797	26.0000100000000
1648	0.82499999	872	-47.00001
1649	0.824	893	-69
1650	1.0089999	1152	-143.0001
1651	0.792	930	-138
1652	0.71600002	831	-114.99998
1653	1.2460001	1357	-110.9999
1654	0.88599998	973	-87.00002
1655	1.09	1162	-72
1656	1.2309999	1249	-18.0001000000000
1657	1.1289999	1038	90.9999
1658	1.016	1249	-233
1659	0.93400002	1043	-108.99998
1660	1.082	1271	-189
1661	0.87900001	1093	-213.99999
1662	0.912	1090	-178
1663	0.81599998	1001	-185.00002
1664	0.74299997	856	-113.00003
1665	0.69	760	-70
1666	0.84600002	960	-113.99998
1667	0.69499999	767	-72.00001
1668	0.63	781	-151
1669	0.77600002	851	-74.99998
1670	0.69499999	739	-44.00001
1671	0.65100002	633	18.0000200000001
1672	0.66600001	757	-90.99999
1673	0.59899998	694	-95.00002
1674	0.50700003	530	-22.9999700000000
1675	0.759	797	-38
1676	0.67699999	699	-22.0000100000000
1677	0.59200001	582	10.0000100000000
1678	0.59500003	607	-11.9999700000000
1679	0.69199997	681	10.9999700000001
1680	0.72500002	733	-7.99998000000005
1681	0.76499999	789	-24.0000100000001
1682	0.75400001	791	-36.9999899999999
1683	0.79000002	822	-31.9999799999999
1684	0.64999998	644	5.99998000000005
1685	0.65799999	650	7.99999000000003
1686	0.65899998	675	-16.0000200000000
1687	0.73699999	772	-35.00001
1688	0.73799998	761	-23.0000200000000
1689	0.87699997	910	-33.00003
1690	0.93099999	981	-50.00001
1691	0.92299998	940	-17.0000200000000
1692	0.72500002	755	-29.9999800000001
1693	0.64300001	701	-57.99999
1694	0.94599998	1102	-156.00002
1695	0.78299999	876	-93.00001
1696	0.787	803	-16
1697	0.56099999	621	-60.00001
1698	0.60799998	638	-30.0000200000000
1699	0.64600003	705	-58.9999700000001
1700	0.54799998	596	-48.0000200000000
1701	0.88099998	852	28.9999800000001
1702	0.87099999	861	9.9999899999999
1703	0.71399999	705	8.99999000000003
1704	0.64200002	670	-27.9999800000001
1705	0.76700002	739	28.0000200000000
1706	0.82099998	859	-38.0000200000001
1707	0.91000003	984	-73.9999700
1708	1.024	1082	-58
1709	0.99800003	1045	-46.99997
1710	0.83200002	864	-31.9999800000001
1711	0.30899999	463	-154.00001
1712	0.39500001	431	-35.99999
1713	0.53100002	569	-37.9999799999999
1714	0.71799999	723	-5.00000999999997
1715	0.90499997	958	-53.00003
1716	0.68699998	677	9.99997999999994
1717	0.72600001	756	-29.99999
1718	0.78899997	826	-37.00003
1719	0.852	877	-25
1720	1.094	1082	12
1721	0.89600003	875	21.0000299999999
1722	1.0549999	1013	41.9999
1723	1.188	1164	24
1724	1.154	1168	-14
1725	1.0089999	1025	-16.0001000000000
1726	1.163	1228	-65
1727	1.427	1557	-130
1728	1.031	1053	-22
1729	1.324	1374	-50
1730	1.201	1230	-29
1731	1.248	1240	8
1732	1.183	1158	25
1733	1.252	1229	23
1734	0.89399999	849	44.9999899999999
1735	0.80699998	795	11.9999799999999
1736	0.84500003	807	38.00003
1737	0.875	824	51
1738	0.82499999	812	12.9999900000000
1739	0.73799998	752	-14.0000200000000
1740	0.72600001	714	12.0000100000000
1741	0.76599997	703	62.99997
1742	0.55299997	546	6.99996999999996
1743	0.80800003	779	29.0000299999999
1744	0.62900001	609	20.0000100000001
1745	0.73799998	774	-36.0000200000000
1746	0.73400003	748	-13.9999700000000
1747	0.87599999	876	-1.00000000884393e-05
1748	0.95300001	944	9.00000999999997
1749	1.1289999	1095	33.9999
1750	1.084	1106	-22
1751	0.81400001	779	35.00001
1752	0.96200001	913	49.00001
1753	0.97600001	975	1.00000999999997
1754	0.93699998	952	-15.0000200000001
1755	0.89700001	900	-2.99999000000003
1756	0.98699999	995	-8.00000999999997
1757	0.79100001	779	12.0000100000000
1758	1.155	1041	114
1759	1.187	1160	27
1760	1.2029999	1205	-2.00009999999997
1761	1.182	1195	-13
1762	1.085	1099	-14
1763	1.087	1089	-2
1764	1.067	1020	47
1765	0.94400001	882	62.00001
1766	0.89700001	876	21.0000100000000
1767	1.05	979	71
1768	0.98500001	998	-12.9999899999999
1769	1.0549999	1031	23.9999
1770	1.268	1194	74
1771	0.86799997	849	18.9999700000000
1772	1.1849999	1164	20.9999000000000
1773	1.1619999	1175	-13.0001000000000
1774	1.352	1351	1
1775	1.0779999	1063	14.9999000000000
1776	1.084	1110	-26
1777	1.126	1138	-12
1778	1.064	1086	-22
1779	0.91399997	933	-19.0000300000000
1780	0.59100002	585	6.00001999999995
1781	1.1289999	1101	27.9999
1782	0.80400002	834	-29.9999799999999
1783	0.68400002	680	4.00002000000006
1784	0.68699998	695	-8.00002000000006
1785	0.69300002	746	-52.9999799999999
1786	0.84100002	899	-57.99998
1787	0.671	724	-53
1788	0.79000002	842	-51.9999799999999
1789	0.75700003	798	-40.99997
1790	0.87300003	899	-25.9999700000000
1791	0.92900002	980	-50.9999799999999
1792	1.067	1096	-29
1793	0.85500002	916	-60.99998
1794	0.949	1006	-57
1795	0.90399998	966	-62.00002
1796	1.0470001	1039	8.00009999999997
1797	0.98699999	984	2.99999000000003
1798	1.033	1070	-37
1799	0.80699998	809	-2.00002000000006
1800	0.87599999	853	22.9999899999999
1801	0.977	949	28
1802	0.87400001	890	-15.9999899999999
1803	0.824	851	-27
1804	0.77600002	798	-21.9999799999999
1805	0.90100002	938	-36.9999799999999
1806	1.126	1135	-9
1807	1.11	1124	-14
1808	1.393	1335	58
1809	0.912	896	16
1810	1.102	1065	37
1811	1.069	1049	20
1812	1.045	1046	-1
1813	1.008	989	19
1814	0.92500001	875	50.00001
1815	0.93000001	925	5.00000999999997
1816	0.67500001	675	9.99999997475243e-06
1817	0.884	906	-22
1818	0.93900001	954	-14.9999900000000
1819	0.77100003	778	-6.99997000000008
1820	0.90499997	890	14.9999700000000
1821	0.72500002	688	37.0000200000000
1822	0.77700001	774	3.00000999999997
1823	0.98900002	955	34.0000200000000
1824	0.84799999	854	-6.00000999999997
1825	0.88300002	923	-39.9999800000001
1826	0.82099998	852	-31.0000200000001
1827	0.85500002	889	-33.9999800000001
1828	1.156	1194	-38
1829	1.141	1135	6
1830	0.89600003	866	30.0000299999999
1831	1.221	1128	93
1832	1.125	1058	67
1833	0.82200003	821	1.00003000000004
1834	0.82200003	798	24.0000300000000
1835	0.73799998	738	-1.99999999495049e-05
1836	0.69800001	739	-40.99999
1837	0.80599999	855	-49.00001
1838	0.778	834	-56
1839	0.847	850	-3
1840	0.89700001	888	9.00000999999997
1841	0.76200002	841	-78.99998
1842	0.986	996	-10
1843	0.95999998	1007	-47.0000200000001
1844	1.079	1076	3
1845	0.76700002	761	6.00001999999995
1846	0.87	913	-43
1847	0.94300002	924	19.0000200000001
1848	0.99900001	1068	-68.9999899999999
1849	0.93900001	928	11.0000100000000
1850	0.73000002	754	-23.9999800000001
1851	0.87300003	886	-12.9999700000000
1852	0.83399999	839	-5.00000999999997
1853	1.0650001	1062	3.00009999999997
1854	0.96899998	958	10.9999799999999
1855	1.223	1201	22
1856	0.995	955	40
1857	1.094	1099	-5
1858	1.089	1040	49
1859	1.068	1025	43
1860	0.995	939	56
1861	1.16	1101	59
1862	1.045	1020	25
1863	1.169	1105	64
1864	1.066	932	134
1865	1.1109999	1003	107.9999
1866	1.061	943	118
1867	1.428	1234	194
1868	1.026	891	135
1869	0.97899997	844	134.99997
1870	0.98699999	887	99.99999
1871	0.778	703	75
1872	0.75199997	736	15.9999700000000
1873	0.87	817	53
1874	1.104	1028	76
1875	1.0700001	964	106.0001
1876	1.322	1164	158
1877	1.223	1122	101
1878	1.0549999	933	121.9999
1879	1.3150001	1216	99.0001
1880	1.156	1066	90
1881	1.235	1115	120
1882	1.205	1111	94
1883	0.91799998	894	23.9999800000001
1884	1.061	1001	60
1885	1.1210001	1108	13.0001000000000
1886	0.91799998	896	21.9999800000001
1887	1.0599999	1030	29.9999
1888	1.073	1056	17
1889	1.03	1046	-16
1890	1.039	1050	-11
1891	1.1160001	1103	13.0001000000000
1892	0.98500001	939	46.0000100000001
1893	1.058	976	82
1894	1.147	1173	-26
1895	1.288	1261	27
1896	1.1799999	1162	17.9999000000000
1897	1.261	1194	67
1898	1.071	965	106
1899	0.89200002	762	130.00002
1900	0.78299999	762	20.9999900000000
1901	0.93400002	909	25.0000200000001
1902	0.95200002	861	91.00002
1903	0.90200001	894	8.00000999999997
1904	0.838	851	-13
1905	0.847	869	-22
1906	1.201	1220	-19
1907	1.11	1110	0
1908	1.007	1042	-35.0000000000001
1909	0.83999997	879	-39.0000299999999
1910	0.76099998	810	-49.0000200000000
1911	0.92900002	947	-17.9999799999999
1912	0.662	693	-31
1913	0.99400002	1019	-24.9999800000001
1914	0.96700001	966	1.00000999999997
1915	0.98199999	999	-17.0000100000000
1916	0.89499998	884	10.9999800000001
1917	1.092	1039	53
1918	1.091	1045	46
1919	0.77100003	753	18.0000299999999
1920	1.0319999	1047	-15.0001000000000
1921	1.05	1081	-31
1922	0.86400002	815	49.0000200000000
1923	1.368	1384	-16
1924	0.921	913	8
1925	1.117	1118	-1
1926	1.016	1048	-32
1927	1.103	1083	20
1928	0.97399998	937	36.9999799999999
1929	1.274	1202	72
1930	1.189	1152	37
1931	1.091	1059	32
1932	1.131	1118	13
1933	0.884	890	-6
1934	1.215	1162	53
1935	1.404	1323	81
1936	1.244	1150	94
1937	1.434	1349	85
1938	1.275	1152	123
1939	1.39	1307	83
1940	1.012	953	59
1941	1.324	1243	81
1942	1.3710001	1256	115.0001
1943	1.523	1390	133
1944	1.561	1449	112
1945	1.428	1353	75
1946	1.5369999	1463	73.9999
1947	1.322	1224	98
1948	1.3279999	1167	160.9999
1949	1.125	1044	81
1950	1.3609999	1244	116.9999
1951	1.302	1163	139
1952	1.46	1344	116
1953	1.49	1384	106
1954	1.5700001	1469	101.0001
1955	1.548	1387	161
1956	1.37	1271	99
1957	1.377	1310	67
1958	1.5420001	1388	154.000100000000
1959	1.534	1361	173
1960	1.858	1606	252
1961	1.6160001	1415	201.0001
1962	1.676	1485	191
1963	1.5829999	1399	183.999900000000
1964	1.601	1509	92
1965	1.559	1385	174
1966	1.488	1390	98
1967	1.524	1433	91
1968	1.607	1544	63
1969	1.352	1176	176
1970	1.105	1021	84
1971	1.4119999	1360	51.9999
1972	1.388	1275	113
1973	1.197	1053	144
1974	1.1440001	1085	59.0001
1975	1.3660001	1229	137.0001
1976	1.3660001	1012	354.0001
1977	1.3660001	1362	4.00009999999997
1978	1.3660001	1030	336.0001
1979	1.3660001	1396	-29.9999
1980	1.3660001	1580	-213.9999
1981	NA	1541	NA
1982	NA	1676	NA
1983	NA	1497	NA
1984	NA	1525	NA
1985	NA	1251	NA
1986	NA	1228	NA
1987	NA	1228	NA
1988	NA	1333	NA
1989	NA	1106	NA
1990	NA	1035	NA
1991	NA	NA	NA
1992	NA	NA	NA
1993	NA	NA	NA
1994	NA	NA	NA