Year,Value,NumPoints 1881,-1.272,21 1882,-0.353726,52 1883,-0.485175,68 1884,-0.325833,58 1885,-0.257706,36 1886,-1.95229,57 1887,-1.48728,34 1888,-0.920722,25 1889,1.07011,27 1890,-1.64451,37 1891,0.034388,43 1892,-0.104592,35 1893,-1.13479,66 1894,-2.52498,65 1895,-1.17233,51 1896,-2.62758,58 1897,-1.64405,65 1898,-0.681372,72 1899,-1.64422,73 1900,-0.903558,74 1901,-1.58458,74 1902,0.210707,74 1903,-1.08655,74 1904,-0.62318,74 1905,0.869531,74 1906,-0.44119,74 1907,-0.931806,74 1908,-0.294462,74 1909,-1.87086,74 1910,-1.59952,74 1911,-1.02969,74 1912,1.41498,74 1913,-0.217716,74 1914,-0.233285,74 1915,1.47817,74 1916,-0.521681,74 1917,-0.671372,74 1918,-2.35283,74 1919,-0.554589,74 1920,-0.658463,74 1921,-0.884153,74 1922,-0.0922675,74 1923,-0.021884,74 1924,0.494015,74 1925,-1.01547,74 1926,2.35427,74 1927,0.526462,74 1928,-0.151923,74 1929,0.844101,74 1930,0.0204819,74 1931,0.742492,74 1932,-0.501846,74 1933,-1.01877,74 1934,-0.762915,74 1935,0.670886,74 1936,-0.205702,74 1937,0.597783,74 1938,0.652067,74 1939,0.818011,74 1940,1.22459,74 1941,1.66771,74 1942,1.7026,74 1943,-0.107503,74 1944,1.47605,74 1945,0.977741,74 1946,-0.258845,74 1947,-0.520115,74 1948,0.477383,74 1949,-1.17208,74 1950,0.336879,74 1951,-0.465255,74 1952,-0.321528,74 1953,0.949075,74 1954,-0.119553,74 1955,-0.227221,74 1956,-1.55368,74 1957,-0.108873,74 1958,1.48658,74 1959,-0.334035,74 1960,0.269676,74 1961,0.404086,74 1962,-0.473097,74 1963,0.949335,74 1964,-0.401591,74 1965,-0.505488,74 1966,-0.986901,74 1967,0.0982326,74 1968,0.735935,74 1969,-0.0926516,74 1970,1.07978,74 1971,-1.62886,74 1972,-1.62221,74 1973,-0.0261238,74 1974,-0.873278,74 1975,-0.443253,74 1976,-0.892667,74 1977,1.81892,74 1978,1.01076,74 1979,0.896324,74 1980,1.72813,74 1981,1.76003,74 1982,-0.0938041,74 1983,0.722604,74 1984,0.630711,74 1985,0.339896,74 1986,0.505989,74 1987,1.63356,74 1988,1.75196,74 1989,0.273125,74 1990,0.906424,74 1991,0.601634,74 1992,0.669009,74 1993,1.05068,74 1994,1.6549,74 1995,0.763649,74 1996,0.723404,74 1997,0.266933,74 1998,1.98378,74 1999,0.129401,74 2000,0.955797,74 2001,1.92795,74 2002,0.757379,74 2003,2.93636,74 2004,1.62883,74 2005,2.40165,74 2006,1.03384,74 2007,0.724194,74 2008,1.26444,74 2009,-0.0977654,74 2010,1.76673,74 2011,1.04241,74 2012,0.410896,74 2013,0.152127,74 2014,2.19929,74 2015,2.84088,74 2016,3.45975,74 2017,1.47105,74 2018,2.51393,74 2019,3.48269,74 2020,1.60735,74 2021,1.36719,74