Year,Value,NumPoints
1881,-1.22047,59
1882,-1.81974,59
1883,0.290453,59
1884,-1.91167,59
1885,-1.12152,59
1886,-1.62588,59
1887,-2.54782,59
1888,-1.57141,59
1889,-1.46562,59
1890,-0.959563,59
1891,-1.91747,56
1892,-1.1434,59
1893,-1.17992,59
1894,-1.78828,59
1895,-0.218416,59
1896,-1.69737,59
1897,-0.649305,77
1898,-1.95223,68
1899,-1.32984,68
1900,-0.343543,72
1901,-0.976721,75
1902,-1.62186,104
1903,-0.99811,101
1904,-0.398624,84
1905,-0.040046,74
1906,-0.750953,77
1907,-0.174429,75
1908,-0.496789,77
1909,-0.538978,84
1910,-0.464205,99
1911,-0.713089,79
1912,-1.86038,110
1913,-0.747616,113
1914,-1.29618,113
1915,-1.53555,115
1916,-1.33675,136
1917,-2.78576,110
1918,-1.26679,106
1919,-1.09592,106
1920,0.35359,106
1921,-0.497472,135
1922,0.069698,132
1923,0.880254,122
1924,0.800114,117
1925,-0.108576,139
1926,0.26507,152
1927,0.0706736,162
1928,0.864,162
1929,0.130132,158
1930,0.779226,346
1931,1.18408,900
1932,1.33282,900
1933,0.57119,900
1934,1.63247,654
1935,0.677957,163
1936,1.07261,715
1937,1.34867,900
1938,3.05213,900
1939,0.306007,900
1940,0.872629,900
1941,-0.0561011,900
1942,2.20944,900
1943,1.87594,660
1944,1.38865,180
1945,1.13903,300
1946,0.177355,900
1947,1.65593,900
1948,-0.666101,900
1949,0.0702456,900
1950,0.471507,900
1951,-0.118184,900
1952,0.945282,900
1953,1.55068,900
1954,1.28732,900
1955,0.189924,900
1956,0.946382,900
1957,0.141172,900
1958,0.410208,900
1959,0.622418,900
1960,0.24794,900
1961,-0.26369,900
1962,0.0471327,900
1963,-1.06912,900
1964,-0.853525,900
1965,0.254699,900
1966,-0.801438,900
1967,0.132681,900
1968,-1.17191,900
1969,0.13195,900
1970,-0.470787,900
1971,0.123438,900
1972,0.162774,900
1973,-0.462345,900
1974,0.26364,900
1975,-0.438409,900
1976,0.131223,900
1977,-0.445188,900
1978,-0.306456,900
1979,-1.05324,900
1980,-0.13457,900
1981,0.768604,900
1982,-0.709101,900
1983,0.122614,900
1984,1.22107,900
1985,0.655697,900
1986,-0.200247,900
1987,-0.856904,900
1988,-0.106038,900
1989,-0.425803,900
1990,0.905834,900
1991,0.6175,900
1992,-0.391206,900
1993,0.189384,900
1994,0.518542,900
1995,0.998243,900
1996,1.14919,900
1997,0.426978,900
1998,1.37609,900
1999,0.479451,900
2000,0.711245,900
2001,1.10176,900
2002,1.45266,900
2003,1.11544,900
2004,-0.133642,900
2005,2.26398,900
2006,2.535,900
2007,2.66194,900
2008,2.11096,900
2009,2.32665,900
2010,2.88363,900
2011,3.54561,900
2012,4.10954,900
2013,2.01293,900
2014,2.67987,900
2015,2.78774,900
2016,4.62844,900
2017,2.9428,900
2018,3.00356,900