Year,Value,NumPoints
1881,-0.0191415,917
1882,-4.23649,1070
1883,-1.21779,986
1884,-1.22299,989
1885,-2.60729,1122
1886,-1.63265,1122
1887,-4.34809,1108
1888,-3.10175,1122
1889,-2.48335,1122
1890,-0.55692,1003
1891,-2.68309,1088
1892,-0.221999,1173
1893,-2.24143,1144
1894,-0.679381,1350
1895,-1.26912,1354
1896,-1.63399,1350
1897,0.859088,1433
1898,-3.08314,1351
1899,-1.24952,1324
1900,-2.45633,1361
1901,-0.685617,1468
1902,-2.39728,1468
1903,0.273591,1468
1904,-0.436113,1356
1905,-1.34794,1256
1906,0.431443,1377
1907,-2.06592,1449
1908,-1.6125,1408
1909,-1.40208,1467
1910,-2.05835,1481
1911,-0.224125,1398
1912,-0.853692,1480
1913,0.880173,1445
1914,2.22734,1480
1915,-3.25462,1540
1916,-4.1066,1545
1917,-3.44981,1464
1918,-1.93728,1446
1919,-0.298732,1446
1920,-1.37859,1495
1921,-0.778001,1561
1922,0.856423,1547
1923,-0.231928,1547
1924,1.07699,1555
1925,0.685352,1581
1926,-0.683511,1582
1927,-0.226521,1582
1928,2.43726,1582
1929,0.443063,1569
1930,0.732514,2340
1931,1.7276,2340
1932,-0.0783107,2340
1933,-1.43973,2340
1934,1.61395,1602
1935,1.34791,1602
1936,0.922938,2340
1937,1.76099,2340
1938,2.26753,2340
1939,2.3114,2340
1940,0.494743,2340
1941,-0.168203,2340
1942,2.22389,2340
1943,1.03317,1620
1944,3.26791,1620
1945,0.0878518,2340
1946,0.134855,2340
1947,1.24179,2340
1948,-2.65857,2340
1949,1.38866,2340
1950,0.46574,2340
1951,0.373712,2340
1952,1.00122,2340
1953,0.966732,2340
1954,1.28584,2340
1955,-1.58321,2340
1956,1.34565,2340
1957,-2.46549,2340
1958,-0.675909,2340
1959,0.425673,2340
1960,2.05207,2340
1961,-1.12473,2340
1962,-0.0630351,2340
1963,0.296043,2340
1964,0.393221,2340
1965,-1.56504,2340
1966,2.06374,2340
1967,1.51708,2340
1968,-2.05117,2340
1969,2.13045,2340
1970,-0.478647,2340
1971,-0.580807,2340
1972,-0.0112484,2340
1973,-0.544792,2340
1974,-0.689285,2340
1975,0.288741,2340
1976,-0.696205,2340
1977,-0.293507,2340
1978,-0.418408,2340
1979,-0.0810931,2340
1980,-0.816251,2340
1981,1.14848,2340
1982,0.279498,2340
1983,0.84141,2340
1984,0.534881,2340
1985,1.90462,2340
1986,-0.425655,2340
1987,-0.596901,2340
1988,0.827713,2340
1989,0.470056,2340
1990,-1.09848,2340
1991,0.658897,2340
1992,0.357319,2340
1993,-1.14237,2340
1994,0.312234,2340
1995,-0.398836,2340
1996,0.658044,2340
1997,-0.0749708,2340
1998,1.20937,2340
1999,0.591888,2340
2000,0.850852,2340
2001,2.5084,2340
2002,2.29203,2340
2003,2.11786,2340
2004,-0.310517,2340
2005,3.29928,2340
2006,3.11213,2340
2007,2.87393,2340
2008,2.28253,2340
2009,2.52019,2340
2010,1.78913,2340
2011,3.49412,2340
2012,1.97686,2340
2013,2.54925,2340
2014,2.5532,2340
2015,1.77448,2340
2016,2.45369,2340
2017,4.85101,2340
2018,3.00588,2340
2019,2.79134,2340