Year,Value,NumPoints 1851,0.254541,627 1852,0.136166,621 1853,-0.372403,613 1854,-0.314465,612 1855,-0.35518,621 1856,0.0423325,607 1857,-0.385378,605 1858,-0.260243,609 1859,-0.133489,605 1860,0.456173,616 1861,0.458053,604 1862,-0.143361,608 1863,0.271171,596 1864,0.443678,596 1865,-0.11343,597 1866,0.0494675,599 1867,0.183046,601 1868,0.904196,601 1869,0.459982,638 1870,0.40236,639 1871,-0.536014,635 1872,-0.0011449,592 1873,0.126433,638 1874,0.724758,640 1875,0.322978,640 1876,-0.372033,639 1877,0.241446,485 1878,0.57701,635 1879,-0.263852,490 1880,0.343329,421 1881,0.254614,641 1882,-0.51812,640 1883,-0.335862,640 1884,0.0071911,641 1885,0.749854,641 1886,0.891543,641 1887,-0.812842,641 1888,-0.654224,641 1889,0.383048,641 1890,-0.712456,641 1891,0.744133,641 1892,0.0516911,641 1893,0.262397,641 1894,-0.442194,641 1895,-0.271794,641 1896,-0.549835,641 1897,0.290443,641 1898,-0.437381,641 1899,0.204407,641 1900,0.309963,641 1901,-0.107259,641 1902,0.736398,641 1903,0.308723,641 1904,-0.611183,641 1905,0.264725,641 1906,0.693442,641 1907,-0.384773,641 1908,-0.0205011,641 1909,0.230476,641 1910,-0.612082,641 1911,0.257855,641 1912,-0.897147,641 1913,0.332341,641 1914,-0.509359,641 1915,1.01676,641 1916,-0.0379695,641 1917,-1.49081,641 1918,-1.08003,641 1919,-1.09895,641 1920,-0.103887,641 1921,0.305528,641 1922,-1.32917,641 1923,0.764048,641 1924,-0.597331,641 1925,0.304581,641 1926,0.574008,641 1927,1.00659,641 1928,0.558139,641 1929,-0.530836,641 1930,0.263,641 1931,-0.366051,641 1932,-0.541511,641 1933,-1.39647,641 1934,-0.682483,641 1935,0.00911017,641 1936,0.869029,641 1937,0.546784,641 1938,0.122064,641 1939,0.0827841,641 1940,0.0487338,641 1941,0.7638,641 1942,0.776937,641 1943,0.425197,641 1944,0.410399,641 1945,-0.550032,641 1946,0.588889,641 1947,-0.417415,641 1948,0.343609,641 1949,-1.5661,641 1950,0.384253,641 1951,-0.200366,641 1952,-0.317792,641 1953,0.515641,641 1954,-0.274259,641 1955,-0.0877844,641 1956,-0.245185,641 1957,-0.156292,641 1958,1.23341,641 1959,-0.724208,641 1960,-0.314527,641 1961,0.567673,641 1962,0.227583,641 1963,-0.398466,641 1964,-0.17548,641 1965,-0.761854,641 1966,0.346248,641 1967,-0.181856,641 1968,0.229133,641 1969,0.0789168,641 1970,-0.313925,641 1971,0.542657,641 1972,0.00910002,641 1973,0.00638033,641 1974,-0.645062,641 1975,0.325902,641 1976,-0.172896,641 1977,0.364631,641 1978,-0.18792,641 1979,0.335436,641 1980,0.375158,641 1981,-0.0982106,641 1982,0.678781,641 1983,0.595726,641 1984,0.283847,641 1985,-0.524704,641 1986,0.145759,641 1987,0.316707,641 1988,0.643954,641 1989,1.32475,641 1990,1.11509,641 1991,0.335945,641 1992,0.689257,641 1993,1.06394,641 1994,1.11461,641 1995,0.817131,641 1996,0.643483,641 1997,1.21221,641 1998,1.60792,641 1999,0.166142,641 2000,0.656897,641 2001,0.234564,641 2002,0.355163,641 2003,0.674278,641 2004,2.22416,641 2005,0.424627,641 2006,0.926352,641 2007,1.36683,641 2008,-0.0341848,641 2009,0.802063,641 2010,0.6567,641 2011,0.345739,641 2012,1.05204,641 2013,1.72285,641 2014,0.606509,641 2015,1.24055,641 2016,1.65945,641 2017,1.18061,641 2018,0.926024,641 2019,1.50735,641 2020,0.327689,641 2021,1.33377,641