Year,Value,NumPoints 1900,1.08579,2 1901,-0.388052,2 1902,0.0435041,2 1903,-0.0338171,2 1904,0.607073,2 1905,1.58448,2 1906,-0.0852918,2 1907,-0.263525,2 1908,-0.0271391,2 1909,-1.62447,2 1910,-0.561333,2 1911,1.42689,2 1912,1.75368,2 1913,-0.139132,2 1914,1.102,2 1915,0.778635,2 1916,0.48548,2 1917,-0.140245,2 1918,-1.75618,2 1919,0.167409,2 1920,-0.0494387,2 1921,0.958343,2 1922,0.270815,2 1923,0.281343,2 1924,-1.97562,2 1925,-0.438562,2 1926,2.08431,2 1927,-0.139199,2 1928,1.68388,2 1929,0.577958,2 1930,0.498214,2 1931,-0.682402,2 1932,0.136005,2 1933,-0.974837,2 1934,0.777785,2 1935,0.15963,2 1936,-0.197887,2 1937,0.573854,2 1938,0.0664933,2 1939,0.417519,2 1940,1.7535,2 1941,-0.242143,2 1942,0.532587,2 1943,0.64386,2 1944,0.248076,2 1945,-1.24942,2 1946,-0.940778,2 1947,-0.339018,2 1948,-1.77159,2 1949,0.00205183,2 1950,1.05739,2 1951,0.0463685,2 1952,-0.979308,2 1953,-1.22306,2 1954,0.910797,2 1955,-2.41765,2 1956,-1.37956,2 1957,1.09335,2 1958,1.59354,2 1959,-0.102141,2 1960,-0.859863,2 1961,0.24828,2 1962,2.60029,2 1963,0.953019,2 1964,-2.66906,2 1965,-0.443717,2 1966,-0.425954,2 1967,0.504256,2 1968,0.972228,2 1969,-0.245173,2 1970,-1.62304,2 1971,-0.131543,2 1972,1.32774,2 1973,1.56569,2 1974,-1.83961,2 1975,-2.37633,2 1976,-0.63605,2 1977,1.70054,2 1978,1.71029,2 1979,2.4564,2 1980,-0.330726,2 1981,1.77601,2 1982,0.58408,2 1983,-0.697188,2 1984,-0.91391,2 1985,0.557265,2 1986,1.45346,2 1987,1.47696,2 1988,-0.971419,2 1989,2.89549,2 1990,1.39539,2 1991,-0.165187,2 1992,-0.472942,2 1993,3.24679,2 1994,-0.678835,2 1995,2.02506,2 1996,2.02278,2 1997,3.09716,2 1998,5.03719,2 1999,0.450805,2 2000,1.18876,2 2001,0.542902,2 2002,3.14983,2 2003,3.07328,2 2004,2.76129,2 2005,2.96702,2 2006,2.91144,2 2007,4.30017,2 2008,2.66368,2 2009,2.87601,2 2010,3.34533,2 2011,3.56695,2 2012,2.21959,2 2013,3.16997,2 2014,3.87815,2 2015,3.83542,2 2016,6.15946,2 2017,6.68785,2 2018,4.89929,2 2019,7.4753,2 2020,3.58156,2