Year,Value,NumPoints 1837,0.734782,1 1838,0.746101,1 1839,0.601031,1 1840,0.70504,1 1841,0.713425,1 1842,0.459241,1 1843,0.221591,1 1844,-0.0120494,1 1845,-0.450689,1 1846,0.513379,1 1847,-0.0157852,1 1848,-0.564845,1 1849,0.225342,1 1850,-0.128888,1 1851,0.418757,1 1852,0.584811,1 1853,-0.155746,1 1854,0.778305,1 1855,0.895564,1 1856,0.0229645,1 1857,0.527532,1 1858,0.132807,1 1859,0.304927,1 1860,-0.382271,1 1861,-0.0733337,1 1862,0.201126,1 1863,0.608411,1 1864,0.676648,1 1865,0.555181,1 1866,0.647903,1 1867,0.665326,1 1868,0.382477,1 1869,0.711047,1 1870,-0.414294,1 1871,-0.62752,1 1872,-0.740804,1 1873,-0.926598,1 1874,-0.02565,1 1875,-0.59495,1 1876,-0.900586,1 1877,-0.0732346,1 1878,0.822159,1 1879,-0.409782,1 1880,-1.1776,1 1881,0.816073,1 1882,-0.579013,1 1883,0.0665665,1 1884,0.360807,1 1885,0.0688146,1 1886,-0.1807,1 1887,-1.12323,1 1888,0.807961,1 1889,0.455195,1 1890,-1.26446,1 1891,0.879631,1 1892,0.502729,1 1893,-0.651601,1 1894,-1.44953,1 1895,0.422516,1 1896,0.00466919,1 1897,0.390648,1 1898,-0.763006,1 1899,-0.346703,1 1900,-0.0657578,1 1901,-0.495527,1 1902,-0.393534,1 1903,-0.66494,1 1904,-1.29098,1 1905,1.32248,1 1906,-0.249265,1 1907,-0.558047,1 1908,0.273758,1 1909,-1.24342,1 1910,-0.988355,1 1911,-0.246226,1 1912,0.418269,1 1913,0.846308,1 1914,0.905151,1 1915,1.56321,1 1916,-1.32721,1 1917,-1.22421,1 1918,0.0504176,1 1919,0.301275,1 1920,-0.960668,1 1921,0.612012,1 1922,-0.102865,1 1923,1.0889,1 1924,0.579529,1 1925,0.537537,1 1926,3.31053,1 1927,-0.611961,1 1928,1.04587,1 1929,1.31389,1 1930,0.690208,1 1931,1.12966,1 1932,0.125048,1 1933,-0.594896,1 1934,1.93737,1 1935,0.843971,1 1936,1.74336,1 1937,1.17319,1 1938,0.687665,1 1939,0.724419,1 1940,2.25632,1 1941,1.80953,1 1942,0.60243,1 1943,0.965589,1 1944,1.30295,1 1945,0.61526,1 1946,-0.216148,1 1947,0.824056,1 1948,-0.98376,1 1949,-0.105225,1 1950,-0.462026,1 1951,-0.316228,1 1952,0.612495,1 1953,0.601659,1 1954,0.556384,1 1955,-0.77698,1 1956,-1.2961,1 1957,2.61275,1 1958,1.07536,1 1959,0.499532,1 1960,0.908007,1 1961,-0.767438,1 1962,0.623528,1 1963,1.16478,1 1964,-0.690697,1 1965,-0.184024,1 1966,-0.556735,1 1967,0.778132,1 1968,0.525129,1 1969,1.14302,1 1970,0.433657,1 1971,-1.46707,1 1972,-0.959778,1 1973,-0.658498,1 1974,0.346008,1 1975,-1.23167,1 1976,0.467255,1 1977,0.999316,1 1978,1.74252,1 1979,0.970828,1 1980,0.0804596,1 1981,1.48132,1 1982,-0.488772,1 1983,1.27163,1 1984,1.23694,1 1985,0.551521,1 1986,1.5686,1 1987,1.1134,1 1988,0.971189,1 1989,0.609591,1 1990,0.220723,1 1991,1.05417,1 1992,-0.0772909,1 1993,2.25362,1 1994,0.433388,1 1995,0.69353,1 1996,-0.0945307,1 1997,1.67831,1 1998,1.02052,1 1999,-0.745143,1 2000,1.68265,1 2001,1.06927,1 2002,2.21804,1 2003,1.88917,1 2004,1.95596,1 2005,2.02838,1 2006,-0.199872,1 2007,0.358981,1 2008,-0.423765,1 2009,0.877851,1 2010,0.987274,1 2011,-0.023496,1 2012,-0.438578,1 2013,1.64914,1 2014,2.59176,1 2015,2.18872,1