Year,Value,NumPoints 1881,-2.77513,11 1882,-0.0500822,52 1883,-0.950501,74 1884,0.385201,63 1885,-0.339658,34 1886,-2.95431,46 1887,-2.6152,32 1888,-1.57572,25 1889,1.94971,30 1890,-3.50988,37 1891,0.277286,41 1892,-0.1335,37 1893,0.62579,74 1894,-3.31713,66 1895,-0.122745,64 1896,-3.83176,62 1897,-1.6967,64 1898,-0.22432,70 1899,-0.955913,74 1900,-1.52551,74 1901,-1.37982,74 1902,3.02896,74 1903,-2.66958,74 1904,-0.365072,74 1905,2.9477,74 1906,-2.91735,74 1907,-2.90465,74 1908,2.11179,74 1909,-2.72899,74 1910,-1.27496,74 1911,-0.606098,74 1912,2.93706,74 1913,-0.26246,74 1914,1.42857,74 1915,3.56131,74 1916,-0.225806,74 1917,-1.48486,74 1918,-3.83881,74 1919,0.0759553,74 1920,1.17607,74 1921,-1.67113,74 1922,2.32628,74 1923,1.07285,74 1924,-0.395752,74 1925,-3.31556,74 1926,3.72322,74 1927,1.54379,74 1928,3.3082,74 1929,4.90949,74 1930,-0.643554,74 1931,4.88161,74 1932,-2.37978,74 1933,-1.6959,74 1934,-2.11459,74 1935,2.78708,74 1936,-0.748111,74 1937,1.32767,74 1938,-0.441635,74 1939,1.37119,74 1940,3.82632,74 1941,3.01118,74 1942,5.07563,74 1943,-1.86247,74 1944,4.178,74 1945,4.45159,74 1946,1.8069,74 1947,-2.6223,74 1948,2.10186,74 1949,-1.68802,74 1950,-1.53435,74 1951,-1.04264,74 1952,-0.874207,74 1953,0.577068,74 1954,-1.31002,74 1955,-0.781549,74 1956,-2.67077,74 1957,-0.50416,74 1958,0.779433,74 1959,1.2901,74 1960,2.12157,74 1961,3.43674,74 1962,0.0708019,74 1963,3.31517,74 1964,2.22655,74 1965,-3.66547,74 1966,-1.24555,74 1967,-0.341605,74 1968,0.965758,74 1969,-2.93819,74 1970,3.12722,74 1971,-2.6806,74 1972,-2.00932,74 1973,-0.69184,74 1974,-1.50898,74 1975,-1.31102,74 1976,-1.7245,74 1977,6.19625,74 1978,2.3824,74 1979,0.44597,74 1980,0.944919,74 1981,2.82017,74 1982,-0.302821,74 1983,2.27145,74 1984,0.864389,74 1985,3.31088,74 1986,5.35498,74 1987,5.54184,74 1988,2.92715,74 1989,0.751396,74 1990,-0.35179,74 1991,1.2182,74 1992,1.94581,74 1993,1.751,74 1994,2.9315,74 1995,1.86258,74 1996,-0.118757,74 1997,2.07323,74 1998,2.39175,74 1999,-1.2747,74 2000,2.32665,74 2001,6.5675,74 2002,2.62653,74 2003,6.19182,74 2004,1.6369,74 2005,3.0418,74 2006,3.21645,74 2007,2.55817,74 2008,1.01202,74 2009,0.529931,74 2010,3.57399,74 2011,0.736505,74 2012,1.63879,74 2013,2.09485,74 2014,4.04576,74 2015,5.08809,74 2016,6.67362,74 2017,2.09994,74 2018,5.23729,74 2019,4.33347,74 2020,-0.0614525,74 2021,3.08117,74 2022,2.14905,74 2023,3.19361,74 2024,2.51875,74