Year,Value,NumPoints
1881,-0.863268,764
1882,-0.680206,917
1883,-1.73933,1056
1884,-0.8284,1062
1885,-1.11374,1023
1886,-2.63029,1172
1887,-1.14046,1076
1888,-1.84708,1102
1889,-1.13668,1127
1890,-1.45695,1129
1891,-0.520431,1063
1892,-1.99602,1078
1893,-1.03497,1159
1894,-1.18826,1232
1895,-0.975753,1285
1896,-1.08167,1329
1897,-0.257319,1360
1898,-0.586109,1373
1899,-1.78414,1394
1900,-0.934617,1331
1901,-1.20601,1364
1902,-1.04749,1465
1903,-1.65195,1468
1904,-0.373437,1456
1905,-0.376197,1364
1906,-1.33546,1286
1907,-0.309375,1377
1908,-0.812931,1435
1909,-1.18149,1407
1910,-0.838519,1468
1911,-1.0151,1489
1912,0.274058,1410
1913,-1.10243,1467
1914,-0.632407,1442
1915,-0.0466709,1480
1916,-1.16322,1505
1917,-0.822258,1531
1918,-2.18738,1450
1919,-0.950592,1458
1920,-0.0374368,1433
1921,-0.67563,1479
1922,0.402677,1549
1923,-0.272108,1550
1924,0.467803,1523
1925,0.851073,1531
1926,0.962253,1574
1927,0.212444,1577
1928,0.437322,1582
1929,1.15218,1586
1930,1.06275,1578
1931,0.372415,2192
1932,1.48544,2340
1933,0.399583,2340
1934,-0.386269,2340
1935,0.834836,1602
1936,0.264838,1604
1937,1.73229,2340
1938,1.68435,2340
1939,1.56622,2340
1940,1.44732,2340
1941,0.51053,2340
1942,0.820896,2340
1943,1.0164,2340
1944,1.81866,1620
1945,1.87313,1620
1946,0.350848,2052
1947,0.550038,2340
1948,1.43071,2340
1949,0.0617203,2340
1950,0.72428,2340
1951,-0.0401002,2340
1952,0.422082,2340
1953,0.522556,2340
1954,0.939729,2340
1955,1.5316,2340
1956,-0.309123,2340
1957,0.0789725,2340
1958,-0.339922,2340
1959,-0.304439,2340
1960,0.77879,2340
1961,0.331838,2340
1962,0.120499,2340
1963,0.312502,2340
1964,-0.441176,2340
1965,-0.340953,2340
1966,-0.988369,2340
1967,-0.194898,2340
1968,0.712175,2340
1969,-0.962592,2340
1970,0.533846,2340
1971,-0.454592,2340
1972,-0.205354,2340
1973,-0.243167,2340
1974,-0.175281,2340
1975,-0.650851,2340
1976,-0.144434,2340
1977,0.301412,2340
1978,-0.13279,2340
1979,-0.182965,2340
1980,0.186246,2340
1981,0.436725,2340
1982,0.634413,2340
1983,-0.434238,2340
1984,0.676851,2340
1985,0.615529,2340
1986,0.688142,2340
1987,-0.14707,2340
1988,-0.147949,2340
1989,-0.266534,2340
1990,-0.19738,2340
1991,-0.464911,2340
1992,0.683749,2340
1993,-0.485422,2340
1994,-0.224667,2340
1995,0.511331,2340
1996,0.95247,2340
1997,0.428219,2340
1998,0.619383,2340
1999,0.662142,2340
2000,0.667342,2340
2001,0.911388,2340
2002,1.36068,2340
2003,1.98262,2340
2004,1.5455,2340
2005,0.918155,2340
2006,2.2264,2340
2007,2.55682,2340
2008,2.31181,2340
2009,2.14254,2340
2010,2.04325,2340
2011,2.648,2340
2012,2.55932,2340
2013,2.34856,2340
2014,2.02439,2340
2015,1.8853,2340
2016,2.77538,2340
2017,3.30983,2340
2018,3.13956,2340
2019,2.38286,2340
2020,2.74907,2340