Year,Value,NumPoints 1900,0.282566,14 1901,0.428636,14 1902,-0.498239,14 1903,-0.47543,14 1904,0.448145,14 1905,-0.101208,14 1906,-0.0158433,14 1907,-1.08586,14 1908,0.593675,14 1909,0.00210029,14 1910,0.263482,13 1911,0.0632936,13 1912,0.042799,14 1913,0.109283,14 1914,-0.0918038,14 1915,0.0172107,14 1916,0.478594,14 1917,0.441228,14 1918,-0.796696,14 1919,-0.500058,14 1920,-0.241798,14 1921,-0.793647,15 1922,-1.01517,15 1923,-0.619296,15 1924,-0.198447,14 1925,0.0783977,15 1926,0.467792,15 1927,0.764975,15 1928,0.667423,15 1929,0.103253,15 1930,0.963831,15 1931,1.07716,15 1932,0.346662,15 1933,1.58449,15 1934,1.22489,15 1935,0.711376,15 1936,1.26502,15 1937,0.515698,14 1938,0.374512,15 1939,1.64213,15 1940,-0.32444,15 1941,1.38747,15 1942,0.24335,15 1943,-0.153564,16 1944,0.35507,16 1945,0.886342,16 1946,0.596127,15 1947,0.947898,16 1948,0.0732542,16 1949,0.445983,17 1950,0.708275,19 1951,0.652671,19 1952,-0.015744,20 1953,1.01425,20 1954,-0.216803,20 1955,0.41031,20 1956,-0.070031,20 1957,0.396972,20 1958,0.790059,21 1959,0.316099,21 1960,1.12233,21 1961,0.652479,21 1962,0.0909616,21 1963,-0.393219,21 1964,-0.429044,21 1965,-0.0884719,21 1966,0.320498,21 1967,0.0123208,21 1968,0.271318,21 1969,-0.102044,21 1970,-0.525896,21 1971,-0.0126366,21 1972,-0.172225,20 1973,0.0484092,20 1974,-0.0556473,20 1975,-0.101495,20 1976,0.470678,21 1977,0.0446578,20 1978,0.290272,21 1979,-0.669561,20 1980,0.568192,21 1981,0.0753801,18 1982,-0.663701,21 1983,-0.854621,20 1984,0.253993,21 1985,-0.0900248,21 1986,0.073862,20 1987,0.401274,20 1988,0.416357,19 1989,-0.21181,20 1990,0.44829,19 1991,1.01259,20 1992,-0.313057,20 1993,-0.150652,20 1994,0.382068,20 1995,0.347315,20 1996,0.630023,20 1997,0.576282,20 1998,0.444465,20 1999,0.657418,20 2000,0.829017,20 2001,0.974259,20 2002,1.15808,20 2003,2.01676,19 2004,1.36477,19 2005,0.495571,19 2006,1.48743,20 2007,0.821069,20 2008,1.64855,19 2009,1.18293,18 2010,1.85114,18 2011,1.04417,18 2012,1.40204,17 2013,0.707171,16 2014,1.67148,17 2015,0.827883,17 2016,1.775,13 2017,1.24762,12 2018,0.488633,13 2019,1.62824,13 2020,0.605828,12 2021,1.81129,12