Year,Value,NumPoints 1900,-0.428228,1775 1901,-0.343002,1693 1902,-0.0362755,1757 1903,-0.162848,1757 1904,-0.469383,1762 1905,-0.524919,1724 1906,-0.389706,1639 1907,-0.803703,1746 1908,0.632798,1764 1909,0.138947,1787 1910,-0.252731,1840 1911,-0.094161,1755 1912,-1.39129,1802 1913,-0.578956,1775 1914,-0.705549,1806 1915,0.216268,1830 1916,-0.513283,1841 1917,-0.165366,1824 1918,-0.611305,1798 1919,-0.385247,1806 1920,-0.243261,1806 1921,-0.194321,1824 1922,-0.349109,1817 1923,-0.155108,1848 1924,-0.0253197,1874 1925,-0.541973,1870 1926,-0.187409,1840 1927,-0.103653,1911 1928,-0.215934,1929 1929,-0.830695,1949 1930,0.0990452,1949 1931,0.282203,2700 1932,0.142118,2700 1933,-0.11417,2700 1934,-0.0322592,2700 1935,0.147268,1949 1936,0.529438,2700 1937,0.215661,2700 1938,0.28468,2700 1939,-0.027292,2700 1940,0.157464,2700 1941,0.438456,2700 1942,-0.167446,2700 1943,-0.0286149,2700 1944,-0.401492,1976 1945,-0.0776072,1976 1946,-0.197442,2700 1947,-0.339608,2700 1948,0.0221068,2700 1949,-0.793956,2700 1950,-0.318807,2700 1951,-0.391922,2700 1952,0.108225,2700 1953,0.562216,2700 1954,0.377996,2700 1955,-0.395374,2700 1956,0.132532,2700 1957,0.330701,2700 1958,0.188001,2700 1959,-0.233395,2700 1960,0.666141,2700 1961,0.425397,2700 1962,0.315181,2700 1963,-0.348448,2700 1964,-0.415491,2700 1965,-0.334672,2700 1966,-0.0803104,2700 1967,0.0337848,2700 1968,-0.474871,2700 1969,0.211894,2700 1970,-0.154305,2700 1971,0.184551,2700 1972,-0.250675,2700 1973,0.147639,2700 1974,0.349799,2700 1975,-0.0758397,2700 1976,-0.301915,2700 1977,0.0974771,2700 1978,-0.421969,2700 1979,-0.0242478,2700 1980,-0.227948,2700 1981,-0.152442,2700 1982,0.106888,2700 1983,-0.0569241,2700 1984,0.48036,2700 1985,-0.148434,2700 1986,-0.18713,2700 1987,-0.00430286,2700 1988,0.802995,2700 1989,0.360227,2700 1990,0.692054,2700 1991,0.934398,2700 1992,-0.290797,2700 1993,0.763292,2700 1994,0.430169,2700 1995,-0.0391643,2700 1996,0.16984,2700 1997,0.204268,2700 1998,1.17393,2700 1999,0.296058,2700 2000,0.42858,2700 2001,1.05263,2700 2002,0.642486,2700 2003,1.31735,2700 2004,0.603643,2700 2005,0.681002,2700 2006,0.571182,2700 2007,1.30628,2700 2008,0.657851,2700 2009,0.876852,2700 2010,1.39568,2700 2011,1.1306,2700 2012,1.41342,2700 2013,0.690973,2700 2014,0.708322,2700 2015,0.708682,2700 2016,1.72649,2700 2017,0.679121,2700 2018,0.740163,2700 2019,1.11853,2700 2020,1.17786,2700 2021,0.987954,2700 2022,1.32485,2700 2023,1.461,2700