Year,Value,NumPoints
1851,-0.230091,1147
1852,-0.233026,1205
1853,-0.265713,1315
1854,-0.283881,1360
1855,-0.288923,1336
1856,-0.318222,1416
1857,-0.467533,1432
1858,-0.389551,1397
1859,-0.280197,1386
1860,-0.386237,1228
1861,-0.424649,991
1862,-0.539317,1073
1863,-0.343981,987
1864,-0.468007,992
1865,-0.333624,938
1866,-0.349205,931
1867,-0.362446,943
1868,-0.347981,1061
1869,-0.308633,1208
1870,-0.325912,1274
1871,-0.365097,1272
1872,-0.329129,1345
1873,-0.342043,1417
1874,-0.371928,1390
1875,-0.382973,1466
1876,-0.421181,1439
1877,-0.101975,1450
1878,-0.000825937,1517
1879,-0.304286,1588
1880,-0.316635,1587
1881,-0.234653,1656
1882,-0.29958,1726
1883,-0.349907,1776
1884,-0.49736,1814
1885,-0.472568,1854
1886,-0.421923,1877
1887,-0.497883,1857
1888,-0.377897,1811
1889,-0.24774,1753
1890,-0.506285,1747
1891,-0.39933,1714
1892,-0.512134,1702
1893,-0.497102,1721
1894,-0.480331,1713
1895,-0.448826,1714
1896,-0.281718,1752
1897,-0.257468,1778
1898,-0.482073,1846
1899,-0.353468,1906
1900,-0.230472,1864
1901,-0.287012,1941
1902,-0.441222,1986
1903,-0.531304,2023
1904,-0.596364,2002
1905,-0.407833,1979
1906,-0.314451,1982
1907,-0.505653,1999
1908,-0.510635,2003
1909,-0.532404,2025
1910,-0.527769,2013
1911,-0.53124,2004
1912,-0.479502,2054
1913,-0.468644,2065
1914,-0.263448,2031
1915,-0.189773,1956
1916,-0.42353,1920
1917,-0.550727,1840
1918,-0.435393,1774
1919,-0.336506,1795
1920,-0.300071,1893
1921,-0.231453,1990
1922,-0.33565,2061
1923,-0.312472,2065
1924,-0.300691,2053
1925,-0.270691,2050
1926,-0.11205,2072
1927,-0.218763,2088
1928,-0.194953,2064
1929,-0.386546,2063
1930,-0.160012,2048
1931,-0.0867926,2073
1932,-0.135754,2127
1933,-0.316824,2136
1934,-0.163266,2115
1935,-0.195108,2113
1936,-0.160608,2172
1937,-0.00655261,2143
1938,0.00228861,2145
1939,-0.0260717,2080
1940,0.0848433,1961
1941,0.0447442,1942
1942,0.0132913,1936
1943,0.0292458,1896
1944,0.162072,1860
1945,0.055861,1812
1946,-0.102092,1997
1947,-0.077181,2080
1948,-0.11166,2071
1949,-0.136264,2115
1950,-0.223863,2137
1951,-0.0490107,2134
1952,0.0217476,2127
1953,0.0908255,2109
1954,-0.10759,2150
1955,-0.189462,2168
1956,-0.264822,2341
1957,-0.0354313,2482
1958,-0.0146108,2489
1959,-0.0446495,2473
1960,-0.11128,2488
1961,-0.0204397,2503
1962,-0.0614585,2486
1963,-0.0351605,2491
1964,-0.304699,2515
1965,-0.204536,2520
1966,-0.146717,2514
1967,-0.115196,2514
1968,-0.167606,2523
1969,-0.0322776,2536
1970,-0.0854391,2529
1971,-0.20636,2523
1972,-0.0959552,2526
1973,0.0491987,2533
1974,-0.174478,2515
1975,-0.111102,2512
1976,-0.216955,2493
1977,0.103067,2513
1978,0.00431667,2514
1979,0.0906524,2561
1980,0.195872,2572
1981,0.24992,2557
1982,0.0338105,2549
1983,0.223609,2559
1984,0.0478209,2567
1985,0.0493967,2577
1986,0.0955373,2577
1987,0.242918,2577
1988,0.282319,2563
1989,0.179443,2554
1990,0.360971,2566
1991,0.339002,2576
1992,0.124388,2558
1993,0.165707,2547
1994,0.234431,2560
1995,0.377937,2564
1996,0.276552,2559
1997,0.422927,2568
1998,0.578341,2563
1999,0.325256,2562
2000,0.331855,2563
2001,0.49034,2553
2002,0.544009,2563
2003,0.545054,2572
2004,0.468346,2563
2005,0.608157,2564
2006,0.573402,2573
2007,0.592485,2573
2008,0.46654,2568
2009,0.597183,2575
2010,0.681391,2574
2011,0.538249,2577
2012,0.578638,2570
2013,0.624169,2571
2014,0.673762,2574
2015,0.826183,2575
2016,0.933915,2576
2017,0.845954,2576
2018,0.763315,2573
2019,0.892151,2574
2020,0.924275,2569
2021,0.762969,2574