Year,Value,NumPoints 1881,-0.471418,36 1882,-0.428317,36 1883,-0.703352,36 1884,-0.293997,36 1885,-0.929402,36 1886,-0.742685,36 1887,-0.958778,36 1888,-1.13299,36 1889,-0.8597,36 1890,-0.812759,36 1891,-0.786981,36 1892,-0.767503,36 1893,0.120018,36 1894,-0.319289,36 1895,-0.231802,36 1896,-0.529885,36 1897,0.153741,36 1898,0.123645,36 1899,0.456611,36 1900,-0.0500271,36 1901,-0.497126,36 1902,-0.580982,36 1903,-0.361065,36 1904,-0.0287059,36 1905,-0.465181,36 1906,-0.21019,36 1907,-0.46136,36 1908,-0.0845889,36 1909,-0.646311,36 1910,-0.375527,36 1911,0.112748,36 1912,-0.337897,36 1913,0.0135729,36 1914,-0.0525634,36 1915,-0.286316,36 1916,-0.177446,36 1917,-0.768787,36 1918,-0.187261,36 1919,-0.59988,36 1920,0.244553,36 1921,0.382428,36 1922,-0.431775,36 1923,-0.277023,36 1924,-0.100534,36 1925,-0.433279,36 1926,0.455909,36 1927,0.00246933,36 1928,0.260421,36 1929,-0.0532404,36 1930,0.252322,36 1931,-0.1979,36 1932,-0.12942,36 1933,0.204845,36 1934,0.313539,36 1935,0.0401667,36 1936,-0.0320533,36 1937,0.383425,36 1938,0.345983,36 1939,0.0130852,36 1940,-0.365871,36 1941,-0.422312,36 1942,-0.151898,36 1943,0.553284,36 1944,-0.00950231,36 1945,0.843213,36 1946,0.0366385,36 1947,0.493088,36 1948,0.669778,36 1949,0.878435,36 1950,0.438954,36 1951,-0.0585059,36 1952,0.00290702,36 1953,0.469882,36 1954,-0.19314,36 1955,0.268851,36 1956,-0.798185,36 1957,0.193133,36 1958,0.156341,36 1959,0.624068,36 1960,0.250302,36 1961,0.802981,36 1962,-0.279436,36 1963,-0.555454,36 1964,0.25568,36 1965,-0.270395,36 1966,0.126072,36 1967,0.132658,36 1968,-0.00240598,36 1969,-0.333242,36 1970,-0.102216,36 1971,-0.108137,36 1972,-0.379244,36 1973,-0.074085,36 1974,0.0618288,36 1975,0.126034,36 1976,0.132017,36 1977,0.0306458,36 1978,-0.089461,36 1979,-0.277046,36 1980,-0.112772,36 1981,0.153415,36 1982,0.506969,36 1983,0.50426,36 1984,0.0269627,36 1985,-0.0636062,36 1986,-0.129208,36 1987,0.271915,36 1988,0.554643,36 1989,1.11606,36 1990,1.09715,36 1991,0.325061,36 1992,0.497134,36 1993,0.107028,36 1994,0.952168,36 1995,1.03063,36 1996,0.188696,36 1997,1.227,36 1998,0.848679,36 1999,1.00767,36 2000,1.03572,36 2001,0.909445,36 2002,1.16637,36 2003,1.38889,36 2004,0.98309,36 2005,0.931948,36 2006,1.47266,36 2007,1.11338,36 2008,0.896009,36 2009,1.17659,36 2010,0.381022,36 2011,1.52519,36 2012,0.927938,36 2013,0.686114,36 2014,1.78565,36 2015,1.46719,36 2016,1.46597,36 2017,1.63533,36 2018,1.40568,36 2019,1.58286,36