Year,Value,NumPoints 1900,-0.593791,1793 1901,-0.14153,1721 1902,-0.983983,1729 1903,-0.588116,1757 1904,-0.382684,1740 1905,-0.677007,1724 1906,0.405749,1632 1907,-0.556178,1750 1908,0.342863,1805 1909,-0.317261,1776 1910,-0.660969,1836 1911,-0.342604,1756 1912,0.357688,1806 1913,-0.206643,1804 1914,-0.273247,1810 1915,-0.0350338,1834 1916,-0.471081,1845 1917,-0.46308,1828 1918,-1.07665,1802 1919,-0.830068,1810 1920,-0.146989,1802 1921,0.445829,1834 1922,0.0652127,1840 1923,0.00681975,1840 1924,-0.535627,1860 1925,-0.658304,1860 1926,-0.459607,1886 1927,0.226163,1911 1928,-0.155441,1929 1929,-0.624407,1949 1930,0.264459,1949 1931,0.0541912,2700 1932,-0.187052,2700 1933,-0.788555,2700 1934,0.00555153,2700 1935,0.0198863,1949 1936,0.650953,2700 1937,0.71014,2700 1938,0.209611,2700 1939,0.451346,2700 1940,0.349469,2700 1941,0.206286,2700 1942,0.181694,2700 1943,0.649955,2700 1944,-0.125879,1980 1945,0.119429,1980 1946,-0.243485,2700 1947,0.0480789,2700 1948,0.279231,2700 1949,-0.825418,2700 1950,-0.115226,2700 1951,-0.0849435,2700 1952,-0.0199389,2700 1953,0.99318,2700 1954,0.333327,2700 1955,0.107512,2700 1956,-0.0719533,2700 1957,0.495785,2700 1958,0.0203433,2700 1959,0.400142,2700 1960,0.860073,2700 1961,0.317479,2700 1962,-0.253904,2700 1963,-0.650687,2700 1964,-0.240456,2700 1965,-0.743601,2700 1966,0.160854,2700 1967,-0.0916808,2700 1968,-0.22143,2700 1969,-0.354118,2700 1970,-0.0615373,2700 1971,0.241011,2700 1972,-0.623624,2700 1973,0.477104,2700 1974,-0.131893,2700 1975,0.206092,2700 1976,-0.209946,2700 1977,0.519939,2700 1978,-0.900261,2700 1979,-0.549913,2700 1980,0.0770869,2700 1981,0.358322,2700 1982,-0.425067,2700 1983,0.120601,2700 1984,0.600533,2700 1985,0.476718,2700 1986,0.00795746,2700 1987,-0.378033,2700 1988,0.631212,2700 1989,0.696149,2700 1990,1.04074,2700 1991,0.977736,2700 1992,-0.412832,2700 1993,0.647293,2700 1994,0.599501,2700 1995,0.841869,2700 1996,-0.0985026,2700 1997,0.548226,2700 1998,1.07877,2700 1999,0.373785,2700 2000,0.876635,2700 2001,0.822363,2700 2002,1.2809,2700 2003,0.615874,2700 2004,0.638087,2700 2005,1.25985,2700 2006,1.22164,2700 2007,0.981356,2700 2008,1.02654,2700 2009,0.653998,2700 2010,1.00751,2700 2011,1.5197,2700 2012,2.05148,2700 2013,1.63894,2700 2014,0.722804,2700 2015,1.38604,2700 2016,1.82423,2700 2017,0.904787,2700 2018,0.893923,2700 2019,2.02167,2700 2020,1.87875,2700 2021,1.85887,2700 2022,1.62082,2700 2023,1.35432,2700