Year,Value,NumPoints 1900,0.556858,4 1901,-0.758129,4 1902,-0.459813,4 1903,-1.23638,4 1904,-0.277972,4 1905,0.769633,4 1906,-0.535684,4 1907,-0.291191,4 1908,-0.0862976,4 1909,-1.00485,4 1910,-1.88637,4 1911,-0.29905,4 1912,0.873165,4 1913,0.432294,4 1914,1.25555,4 1915,-0.345244,4 1916,-1.0458,4 1917,-0.429635,4 1918,-1.57615,4 1919,-0.99203,4 1920,-1.92916,4 1921,0.144562,4 1922,0.405077,4 1923,0.429394,4 1924,-0.449209,4 1925,-0.173283,4 1926,1.5342,4 1927,-0.343572,4 1928,0.0445791,4 1929,0.987844,4 1930,-0.359124,4 1931,-0.434783,4 1932,-0.397414,4 1933,-0.912857,4 1934,0.234475,4 1935,0.872634,4 1936,0.645449,4 1937,1.61751,4 1938,0.50728,4 1939,-0.922413,4 1940,1.31317,4 1941,1.00176,4 1942,0.936647,4 1943,0.109621,4 1944,-0.250232,4 1945,-0.496577,4 1946,-1.50585,4 1947,-0.355908,4 1948,-0.0933588,4 1949,-0.0707354,4 1950,1.13048,4 1951,0.0918957,4 1952,-0.392621,4 1953,-0.0547018,4 1954,0.0634288,4 1955,-1.40374,4 1956,-1.76431,4 1957,1.45505,4 1958,1.03027,4 1959,0.0392783,4 1960,0.452714,4 1961,-0.934002,4 1962,1.14427,4 1963,1.10193,4 1964,-1.99941,4 1965,-1.07588,4 1966,-0.201357,4 1967,2.66915,4 1968,0.313588,4 1969,0.413309,4 1970,0.087169,4 1971,-1.78297,4 1972,0.326579,4 1973,-0.250417,4 1974,-0.552953,4 1975,-1.2618,4 1976,-1.75206,4 1977,-0.233887,4 1978,2.31889,4 1979,1.8587,4 1980,0.293895,4 1981,1.26845,4 1982,1.00388,4 1983,1.21299,4 1984,-0.324041,4 1985,0.638128,4 1986,1.26202,4 1987,-0.318245,4 1988,-0.0273448,4 1989,1.66686,4 1990,-0.0903015,4 1991,1.00671,4 1992,-0.469876,4 1993,1.26973,4 1994,-0.597854,4 1995,1.26522,4 1996,1.92321,4 1997,1.52991,4 1998,0.768059,4 1999,-1.9128,4 2000,1.77272,4 2001,0.779622,4 2002,2.60928,4 2003,2.34225,4 2004,2.62322,4 2005,1.15917,4 2006,0.39152,4 2007,2.37829,4 2008,-0.0575283,4 2009,0.536446,4 2010,1.17655,4 2011,1.55786,4 2012,-0.979298,4 2013,1.3584,4 2014,3.59446,4 2015,2.73966,4 2016,4.42465,4 2017,3.86594,4 2018,5.36498,4 2019,5.4002,4 2020,2.58792,4