Year,Value,NumPoints 1900,-0.516711,1781 1901,-0.384814,1714 1902,-0.526508,1747 1903,-0.476123,1735 1904,-0.347659,1739 1905,-0.56108,1709 1906,0.136427,1667 1907,-0.537372,1753 1908,0.176269,1782 1909,-0.114886,1779 1910,-0.259046,1816 1911,-0.214107,1746 1912,-0.756792,1813 1913,-0.477769,1796 1914,-0.31925,1817 1915,-0.0567911,1833 1916,-0.442258,1842 1917,-0.346009,1825 1918,-0.765732,1802 1919,-0.330959,1807 1920,-0.183458,1804 1921,-0.122086,1820 1922,-0.30184,1823 1923,0.0385364,1840 1924,-0.180745,1862 1925,-0.557701,1858 1926,-0.145873,1861 1927,0.111375,1917 1928,-0.0827368,1929 1929,-0.631754,1942 1930,0.205206,1949 1931,0.190447,2700 1932,0.176529,2700 1933,-0.285267,2700 1934,-0.0569782,2700 1935,0.0313555,1944 1936,0.507542,2700 1937,0.267542,2700 1938,0.240501,2700 1939,0.185662,2700 1940,0.246702,2700 1941,0.352905,2700 1942,-0.0673458,2700 1943,0.245376,2700 1944,-0.181945,1977 1945,0.161538,1978 1946,-0.245189,2700 1947,-0.218738,2700 1948,0.051129,2700 1949,-0.569898,2700 1950,-0.173454,2700 1951,-0.111988,2700 1952,-0.0375726,2700 1953,0.655797,2700 1954,0.464465,2700 1955,-0.10025,2700 1956,-0.183838,2700 1957,0.45861,2700 1958,0.162969,2700 1959,0.0834374,2700 1960,0.556971,2700 1961,0.164354,2700 1962,-0.00404002,2700 1963,-0.339702,2700 1964,-0.241108,2700 1965,-0.468526,2700 1966,0.0862371,2700 1967,-0.0974896,2700 1968,-0.252558,2700 1969,-0.0256045,2700 1970,-0.279356,2700 1971,0.185983,2700 1972,-0.375822,2700 1973,0.249819,2700 1974,0.192844,2700 1975,0.037469,2700 1976,-0.219818,2700 1977,0.248173,2700 1978,-0.539769,2700 1979,-0.292474,2700 1980,0.0223953,2700 1981,0.19377,2700 1982,-0.250258,2700 1983,0.0148908,2700 1984,0.262012,2700 1985,0.0556412,2700 1986,-0.230611,2700 1987,-0.142716,2700 1988,0.528611,2700 1989,0.452365,2700 1990,0.721762,2700 1991,0.892141,2700 1992,-0.426196,2700 1993,0.406791,2700 1994,0.412851,2700 1995,0.498863,2700 1996,-0.146001,2700 1997,0.348032,2700 1998,0.961141,2700 1999,0.206499,2700 2000,0.474551,2700 2001,0.859803,2700 2002,0.920022,2700 2003,1.04093,2700 2004,0.644454,2700 2005,0.879958,2700 2006,0.808792,2700 2007,1.20918,2700 2008,0.808097,2700 2009,0.809529,2700 2010,1.18159,2700 2011,1.20737,2700 2012,1.44733,2700 2013,1.02154,2700 2014,0.88418,2700 2015,0.888313,2700 2016,1.69506,2700 2017,0.915639,2700 2018,0.843753,2700 2019,1.5093,2700 2020,1.46168,2700 2021,1.33184,2700 2022,1.43654,2700 2023,1.6337,2700