Year,Value,NumPoints 1881,-0.184794,2279 1882,-0.127735,2296 1883,-0.26501,2296 1884,-0.625151,2329 1885,-0.469414,2297 1886,-0.235948,2297 1887,-0.186373,2298 1888,-0.39069,2298 1889,-0.413472,2330 1890,-0.442372,2298 1891,0.0698302,2332 1892,0.02084,2332 1893,-0.399267,2332 1894,-0.192853,2332 1895,-0.0228627,2336 1896,-0.565694,2336 1897,0.0212469,2336 1898,-0.147118,2332 1899,-0.0559658,2332 1900,0.0493278,2336 1901,-0.405194,2336 1902,-0.57258,2336 1903,-0.715798,2336 1904,-0.96842,2336 1905,-0.275336,2332 1906,-0.452832,2332 1907,-0.577863,2332 1908,-0.383333,2332 1909,-0.232532,2332 1910,-0.690348,2336 1911,-0.326247,2336 1912,-1.34501,2332 1913,-0.632421,2336 1914,-0.361326,2332 1915,-0.336088,2338 1916,-0.498886,2338 1917,-0.0569553,2338 1918,-0.368672,2338 1919,-0.119765,2338 1920,-0.250717,2338 1921,0.0314543,2338 1922,-0.247479,2338 1923,-0.19783,2338 1924,-0.120797,2338 1925,0.0432671,2340 1926,-0.250401,2340 1927,0.0405891,2340 1928,-0.252301,2340 1929,-0.273176,2340 1930,-0.142401,2340 1931,0.106382,2340 1932,0.195952,2340 1933,0.114812,2340 1934,-0.336225,2340 1935,0.00131469,2340 1936,0.115734,2340 1937,0.484995,2340 1938,0.220259,2340 1939,0.309819,2340 1940,-0.00304032,2340 1941,-0.223252,2340 1942,0.143439,2340 1943,0.218666,2340 1944,0.494278,2340 1945,0.297123,2340 1946,0.167869,2340 1947,0.0971115,2340 1948,0.129409,2340 1949,-0.0377722,2340 1950,0.108481,2340 1951,0.217168,2340 1952,0.325254,2340 1953,0.342655,2340 1954,0.374234,2340 1955,0.235711,2340 1956,-0.146545,2340 1957,0.0136131,2340 1958,-0.0524628,2340 1959,0.220186,2340 1960,0.156558,2340 1961,0.263795,2340 1962,0.100146,2340 1963,0.156619,2340 1964,-0.267833,2340 1965,-0.447086,2340 1966,-0.0185167,2340 1967,0.0373188,2340 1968,-0.262529,2340 1969,-0.132626,2340 1970,0.00338036,2340 1971,-0.202907,2340 1972,-0.589525,2340 1973,-0.120646,2340 1974,-0.312872,2340 1975,0.204461,2340 1976,-0.47834,2340 1977,0.133771,2340 1978,0.129459,2340 1979,0.176149,2340 1980,-0.0597853,2340 1981,0.0686544,2340 1982,-0.0479502,2340 1983,0.199893,2340 1984,-0.182132,2340 1985,-0.243229,2340 1986,-0.0575302,2340 1987,0.106793,2340 1988,0.173245,2340 1989,0.20911,2340 1990,0.561514,2340 1991,0.216813,2340 1992,-0.314122,2340 1993,-0.381991,2340 1994,0.528987,2340 1995,0.0568279,2340 1996,-0.113091,2340 1997,0.202675,2340 1998,0.910179,2340 1999,0.618071,2340 2000,0.587167,2340 2001,0.493612,2340 2002,0.650276,2340 2003,0.653708,2340 2004,0.684602,2340 2005,1.13344,2340 2006,0.670183,2340 2007,0.815183,2340 2008,0.496893,2340 2009,0.574424,2340 2010,0.835016,2340 2011,0.900967,2340 2012,1.00513,2340 2013,0.840645,2340 2014,0.823324,2340 2015,1.07107,2340 2016,1.38438,2340 2017,0.950252,2340 2018,1.10009,2340 2019,1.29468,2340