Year,Value,NumPoints 1900,0.703993,2 1901,-2.19408,2 1902,-2.50193,2 1903,-2.38885,2 1904,-0.790836,2 1905,0.563242,2 1906,-1.26735,2 1907,-5.73059,2 1908,-2.26579,2 1909,-2.2395,2 1910,-1.03869,2 1911,-0.757442,2 1912,-0.392173,3 1913,-1.35275,3 1914,-1.54021,3 1915,0.436904,3 1916,-0.431664,3 1917,-3.70621,3 1918,-3.52492,2 1919,-1.53072,3 1920,-2.70349,3 1921,0.433009,4 1922,-2.07756,4 1923,-1.12905,4 1924,0.0898627,5 1925,0.304787,5 1926,-0.71181,5 1927,-1.25502,4 1928,-1.45358,4 1929,-2.22838,5 1930,-0.854358,5 1931,0.032341,8 1932,0.652257,7 1933,-1.19481,9 1934,-0.592611,9 1935,-0.0907729,8 1936,-1.60178,8 1937,1.54229,8 1938,-0.0779736,10 1939,1.58495,10 1940,0.400463,9 1941,-0.639644,9 1942,-0.313389,10 1943,-0.305043,11 1944,1.2085,9 1945,-1.8154,10 1946,0.0488474,12 1947,-1.45104,13 1948,-0.0695003,15 1949,-0.385862,16 1950,-0.715315,18 1951,0.666289,20 1952,3.24803,20 1953,1.80025,20 1954,-0.669006,20 1955,1.40451,21 1956,-0.96455,20 1957,-0.989176,22 1958,-0.445899,25 1959,-1.36277,27 1960,0.876056,27 1961,-0.11,27 1962,-0.867694,28 1963,0.357474,27 1964,-1.2884,27 1965,0.693597,28 1966,-0.0900772,27 1967,-0.790188,26 1968,-0.244521,26 1969,-1.06318,27 1970,-0.9207,27 1971,1.15582,28 1972,-1.84762,26 1973,0.908533,26 1974,-0.240175,26 1975,2.67725,27 1976,1.16423,28 1977,1.66488,28 1978,-1.95525,28 1979,-0.104473,27 1980,1.0143,26 1981,-0.0445635,25 1982,-0.880761,26 1983,-1.47775,26 1984,1.12173,26 1985,0.890977,26 1986,-0.309173,26 1987,-1.11817,27 1988,1.11496,26 1989,0.116076,26 1990,0.400371,26 1991,0.924708,27 1992,-1.79488,25 1993,0.757447,23 1994,1.5971,18 1995,2.68243,28 1996,1.30805,27 1997,0.840141,27 1998,3.30612,28 1999,0.991206,28 2000,0.647969,28 2001,0.923615,28 2002,-0.313255,28 2003,1.22857,27 2004,-0.617653,28 2005,1.46854,29 2006,2.98519,26 2007,0.652898,28 2008,2.28526,25 2009,0.344336,27 2010,3.32298,25 2011,-0.364196,26 2012,2.25787,26 2013,0.799267,25 2014,1.08616,25 2015,0.725803,25 2016,1.88704,22 2017,1.61955,20 2018,0.00323208,21 2019,1.55212,19 2020,0.810768,18 2021,1.33202,19