Year,Value,NumPoints
1881,-1.4375,881
1882,-0.666748,922
1883,-0.497609,984
1884,-2.68679,986
1885,-2.28823,1122
1886,-1.87905,1249
1887,-1.09557,989
1888,-1.52219,1102
1889,0.103014,1127
1890,-1.30958,1136
1891,-0.525577,1122
1892,-1.07589,1079
1893,-0.332366,1269
1894,-0.384127,1290
1895,-0.815784,1235
1896,-1.61681,1342
1897,0.888912,1402
1898,-0.793971,1306
1899,-1.23102,1360
1900,-0.304412,1433
1901,-0.935702,1379
1902,-1.23352,1455
1903,-0.796618,1468
1904,-0.25079,1380
1905,0.150925,1364
1906,-0.22482,1270
1907,-0.846298,1390
1908,0.131336,1445
1909,-0.750964,1418
1910,-0.229829,1480
1911,-0.340177,1419
1912,0.0911799,1448
1913,-0.342167,1424
1914,-0.757406,1457
1915,1.08042,1481
1916,-0.401,1536
1917,-0.827546,1464
1918,-1.28649,1438
1919,0.066257,1446
1920,-0.180043,1438
1921,-0.564222,1491
1922,-0.655775,1535
1923,-1.01317,1480
1924,0.855115,1480
1925,-0.472466,1535
1926,-0.885296,1561
1927,0.680432,1572
1928,-0.362076,1582
1929,-0.717481,1602
1930,-0.0635824,1578
1931,0.0568114,2340
1932,0.838533,2320
1933,-0.567721,2340
1934,0.529079,2340
1935,-0.102052,1602
1936,0.215743,2340
1937,0.896291,2340
1938,0.43726,2340
1939,0.161725,2340
1940,0.99858,2340
1941,0.31063,2340
1942,0.972051,2340
1943,1.51741,2340
1944,0.303273,1620
1945,0.361692,1620
1946,0.533648,2340
1947,0.549634,2340
1948,0.824978,2340
1949,-0.628016,2340
1950,-0.19865,2340
1951,0.542825,2340
1952,0.648858,2340
1953,1.1763,2340
1954,1.09457,2340
1955,-0.677227,2340
1956,-1.16739,2340
1957,0.309665,2340
1958,-0.363205,2340
1959,0.0889769,2340
1960,1.23624,2340
1961,-0.58128,2340
1962,-0.655517,2340
1963,-0.43061,2340
1964,-1.25689,2340
1965,-0.560154,2340
1966,-0.29188,2340
1967,1.24013,2340
1968,-0.0800442,2340
1969,-0.175902,2340
1970,-0.642226,2340
1971,0.210054,2340
1972,-0.659549,2340
1973,0.0816223,2340
1974,-0.00771085,2340
1975,0.456857,2340
1976,-0.44931,2340
1977,0.966096,2340
1978,-0.400687,2340
1979,-0.29245,2340
1980,0.641261,2340
1981,0.712009,2340
1982,-0.882603,2340
1983,-0.772788,2340
1984,0.78906,2340
1985,-0.0626062,2340
1986,0.376878,2340
1987,-0.478619,2340
1988,0.84446,2340
1989,0.0881183,2340
1990,1.83367,2340
1991,1.13145,2340
1992,0.103822,2340
1993,1.09292,2340
1994,0.595925,2340
1995,1.2557,2340
1996,0.420051,2340
1997,0.742194,2340
1998,0.244225,2340
1999,-0.0155015,2340
2000,0.282326,2340
2001,0.413034,2340
2002,0.909835,2340
2003,1.4127,2340
2004,0.704682,2340
2005,1.95448,2340
2006,2.04936,2340
2007,0.649443,2340
2008,1.72195,2340
2009,1.30545,2340
2010,2.75202,2340
2011,1.7774,2340
2012,1.86554,2340
2013,1.31564,2340
2014,1.85978,2340
2015,1.41405,2340
2016,2.60384,2340
2017,0.710267,2340
2018,0.870544,2340
2019,2.48286,2340
2020,2.59863,2340