Year,Value,NumPoints 1895,-1.91468,67 1896,0.313334,67 1897,-2.93331,74 1898,-1.67886,74 1899,-1.2032,74 1900,-1.49795,74 1901,0.687837,74 1902,2.15249,74 1903,-2.46626,74 1904,0.697596,74 1905,-0.824487,74 1906,1.54938,74 1907,-1.98581,74 1908,-2.55341,74 1909,-1.68778,74 1910,-0.634882,74 1911,3.36857,74 1912,0.826341,74 1913,-1.40502,74 1914,2.43056,74 1915,-2.45345,74 1916,1.77783,74 1917,-0.513486,74 1918,-0.397976,74 1919,-0.1879,74 1920,-1.53418,74 1921,0.106497,74 1922,2.0856,74 1923,3.86367,74 1924,-2.13702,74 1925,3.64409,74 1926,2.72421,74 1927,-1.41711,74 1928,-0.258094,74 1929,1.51895,74 1930,-0.0994702,74 1931,-0.381006,74 1932,1.37585,74 1933,-1.95871,74 1934,2.0426,74 1935,0.0647497,74 1936,2.25754,74 1937,3.06147,74 1938,4.11266,74 1939,-1.35361,74 1940,1.77202,74 1941,0.077849,74 1942,1.53699,74 1943,2.12128,74 1944,1.98656,74 1945,0.558455,74 1946,2.14288,74 1947,0.232006,74 1948,-0.2189,74 1949,1.17342,74 1950,0.536295,74 1951,-1.04336,74 1952,2.32622,74 1953,-0.0769227,74 1954,2.11059,74 1955,-1.24833,74 1956,-3.0117,74 1957,2.04111,74 1958,-2.59762,74 1959,-0.38712,74 1960,0.604845,74 1961,-1.74291,74 1962,1.50898,74 1963,0.519979,74 1964,1.33145,74 1965,-2.79513,74 1966,-1.02563,74 1967,0.00167624,74 1968,-0.820262,74 1969,3.17774,74 1970,-2.58302,74 1971,-0.67847,74 1972,0.281356,74 1973,-0.620311,74 1974,-0.852359,74 1975,-0.568402,74 1976,-0.149887,74 1977,0.926833,74 1978,0.31201,74 1979,3.06002,74 1980,1.99642,74 1981,1.02189,74 1982,-2.88106,74 1983,-0.86419,74 1984,0.0922375,74 1985,-2.38288,74 1986,1.2524,74 1987,2.68281,74 1988,-1.12587,74 1989,0.290043,74 1990,-0.634151,74 1991,0.0324289,74 1992,-2.09293,74 1993,2.41807,74 1994,-0.715392,74 1995,1.19683,74 1996,-4.34842,74 1997,-2.55327,74 1998,1.19149,74 1999,-0.799632,74 2000,-0.115931,74 2001,-1.23751,74 2002,3.54135,74 2003,3.58981,74 2004,1.96536,74 2005,1.3672,74 2006,3.0822,74 2007,0.126277,74 2008,-2.70977,74 2009,2.80113,74 2010,1.58447,74 2011,1.79737,74 2012,-0.357033,74 2013,4.65944,74 2014,0.580357,74 2015,3.35605,74 2016,1.69793,74 2017,2.59211,74 2018,4.3976,74 2019,2.8657,74 2020,1.5971,74 2021,1.76235,74