Year,Value,NumPoints 1893,0.14213,83 1894,-2.41438,83 1895,-1.47574,83 1896,-2.60482,83 1897,-0.0244765,83 1898,0.0142685,84 1899,-0.492779,84 1900,0.17134,85 1901,-1.17508,85 1902,-0.5634,85 1903,-0.879155,85 1904,-0.41137,85 1905,1.02441,85 1906,-0.611731,85 1907,-0.710313,85 1908,0.0883086,85 1909,-1.42385,85 1910,-1.58169,85 1911,0.137869,85 1912,1.59253,85 1913,0.340095,85 1914,1.5249,85 1915,0.43695,85 1916,-0.228943,85 1917,-0.916961,85 1918,-1.74805,85 1919,-0.0246972,85 1920,-1.24704,85 1921,0.426823,85 1922,0.161164,85 1923,1.02261,85 1924,-0.772386,85 1925,-0.0600541,85 1926,2.21788,85 1927,-0.598844,85 1928,1.10021,85 1929,1.4246,85 1930,-0.298595,85 1931,0.311009,85 1932,-0.65125,85 1933,-1.0692,85 1934,0.272621,85 1935,0.054483,85 1936,0.562438,85 1937,1.1092,85 1938,1.20678,85 1939,-0.4479,85 1940,2.48902,85 1941,1.05744,85 1942,1.23046,85 1943,1.03918,85 1944,0.664606,85 1945,-0.376977,85 1946,-0.504704,85 1947,0.397102,85 1948,-1.07958,85 1949,0.413014,85 1950,1.42738,85 1951,0.146473,85 1952,0.0763667,85 1953,0.22584,85 1954,-0.240466,85 1955,-1.50986,85 1956,-2.15095,85 1957,1.49649,85 1958,0.973917,85 1959,-0.572414,85 1960,0.617213,85 1961,-0.89864,85 1962,1.30839,85 1963,0.728422,85 1964,-1.71048,85 1965,-0.279206,85 1966,-0.765932,85 1967,1.30524,85 1968,-0.132169,85 1969,1.03251,85 1970,-0.193296,85 1971,-1.79393,85 1972,-0.336555,85 1973,-0.232235,85 1974,-1.34349,85 1975,-1.24304,85 1976,-0.23724,85 1977,0.728789,85 1978,2.49322,85 1979,1.73728,85 1980,0.769773,85 1981,1.99079,85 1982,0.549129,85 1983,0.900623,85 1984,-0.982746,85 1985,0.435387,85 1986,0.57798,85 1987,0.800481,85 1988,0.894503,85 1989,1.13192,85 1990,-0.113659,85 1991,0.847513,85 1992,-0.725871,85 1993,2.12848,85 1994,-0.238238,85 1995,1.34788,85 1996,0.407868,85 1997,1.58626,85 1998,2.01156,85 1999,-1.27853,85 2000,1.47356,85 2001,0.90532,85 2002,2.82851,85 2003,2.04337,85 2004,2.47958,85 2005,1.7472,85 2006,0.714946,85 2007,2.14369,85 2008,0.0342312,85 2009,0.84896,85 2010,1.27715,85 2011,1.36764,85 2012,-0.813317,85 2013,1.34076,85 2014,3.19643,85 2015,2.54368,85 2016,3.92686,85 2017,2.98851,85 2018,3.67009,85