Year,Value,NumPoints 1851,0.279817,263 1852,-0.167569,260 1853,-0.302903,252 1854,-0.12822,250 1855,-0.165195,180 1856,-0.340976,244 1857,-0.409433,245 1858,-0.324592,250 1859,-0.294507,246 1860,0.113404,256 1861,0.214802,241 1862,-0.413861,243 1863,-0.195236,238 1864,-0.0640631,236 1865,-0.428224,243 1866,-0.067865,242 1867,-0.189551,239 1868,0.363075,241 1869,0.260372,278 1870,0.143294,277 1871,-0.916182,260 1872,-0.0689183,230 1873,0.264106,279 1874,1.23199,279 1875,0.207644,279 1876,-0.350039,268 1877,0.18536,193 1878,0.275604,279 1879,-0.538734,125 1880,-0.204982,68 1881,0.366673,279 1882,-0.531603,279 1883,-0.21342,279 1884,0.161131,279 1885,0.622353,279 1886,0.453268,279 1887,-0.971983,279 1888,-0.375933,279 1889,0.360154,279 1890,-0.459666,279 1891,0.749925,279 1892,0.133039,279 1893,0.61708,279 1894,-0.255562,279 1895,-0.534481,279 1896,-1.05914,279 1897,0.238893,279 1898,-0.11121,279 1899,0.49021,279 1900,0.500819,279 1901,-0.380153,279 1902,1.22021,279 1903,0.235556,279 1904,-0.357527,279 1905,0.121979,279 1906,0.295336,279 1907,-0.141799,279 1908,-0.0618328,279 1909,0.0467247,279 1910,-0.772512,279 1911,0.569224,279 1912,-0.602398,279 1913,0.311039,279 1914,0.0757423,279 1915,1.20513,279 1916,-0.140681,279 1917,-0.64693,279 1918,-0.504687,279 1919,-0.76964,279 1920,-0.495014,279 1921,0.332388,279 1922,-1.63768,279 1923,1.08217,279 1924,-0.773428,279 1925,0.0868062,279 1926,1.0735,279 1927,0.523967,279 1928,-0.32901,279 1929,-0.276108,279 1930,-0.169053,279 1931,-0.622543,279 1932,-0.866092,279 1933,-0.902094,279 1934,-0.683376,279 1935,-0.384433,279 1936,1.29358,279 1937,-0.0339029,279 1938,-0.248375,279 1939,-0.316775,279 1940,0.642223,279 1941,0.53053,279 1942,0.525825,279 1943,0.22222,279 1944,0.194343,279 1945,-0.854835,279 1946,0.114397,279 1947,-0.215969,279 1948,-0.781285,279 1949,-1.0458,279 1950,0.46515,279 1951,0.247764,279 1952,-0.497837,279 1953,0.700841,279 1954,-0.0661912,279 1955,-1.02679,279 1956,-0.46355,279 1957,1.18334,279 1958,0.850561,279 1959,-0.444072,279 1960,-0.519561,279 1961,-0.49388,279 1962,0.561698,279 1963,-0.679088,279 1964,-0.0863447,279 1965,-1.10423,279 1966,-0.135977,279 1967,0.241867,279 1968,0.900271,279 1969,-0.658822,279 1970,-0.626762,279 1971,-0.28525,279 1972,0.605327,279 1973,-0.72004,279 1974,0.0588697,279 1975,-0.321436,279 1976,0.315202,279 1977,1.45949,279 1978,0.325447,279 1979,0.906462,279 1980,-0.22732,279 1981,-0.298882,279 1982,0.0972251,279 1983,0.100133,279 1984,-0.0582785,279 1985,-0.413572,279 1986,-0.0867368,279 1987,0.464755,279 1988,0.573515,279 1989,1.03758,279 1990,1.25187,279 1991,0.135517,279 1992,0.560858,279 1993,1.20048,279 1994,0.731331,279 1995,0.262581,279 1996,-0.232001,279 1997,1.45977,279 1998,0.244246,279 1999,0.566696,279 2000,-0.22796,279 2001,0.229694,279 2002,0.0435237,279 2003,0.574508,279 2004,2.86372,279 2005,1.36743,279 2006,-0.175431,279 2007,1.55776,279 2008,-0.551415,279 2009,0.595115,279 2010,0.399887,279 2011,-0.106783,279 2012,0.198415,279 2013,1.51445,279 2014,0.215954,279 2015,0.645486,279 2016,1.48706,279 2017,1.11304,279 2018,0.41169,279 2019,2.03063,279 2020,0.653159,279