Year,Value,NumPoints 1851,-0.868938,850 1852,-1.3079,850 1853,-0.875943,850 1854,-0.257028,850 1855,-0.87555,850 1856,-1.13841,850 1857,-1.03737,850 1858,-0.961281,850 1859,-0.912198,850 1860,-0.488286,850 1861,-0.794057,850 1862,0.10603,850 1863,-0.642759,849 1864,0.260642,844 1865,-0.0704589,849 1866,-1.49167,842 1867,0.150208,842 1868,-0.866341,849 1869,0.024128,850 1870,-0.927164,850 1871,0.239962,847 1872,-0.254936,849 1873,-0.270822,850 1874,0.105172,850 1875,-1.12989,850 1876,-0.522797,850 1877,-0.102658,850 1878,0.700494,850 1879,-0.649808,850 1880,-0.915509,850 1881,0.355364,850 1882,-0.448524,850 1883,-0.873945,850 1884,-1.00984,850 1885,-1.05218,850 1886,0.172346,850 1887,-0.960481,850 1888,-0.694976,850 1889,-0.501418,850 1890,-1.13802,850 1891,-0.62154,850 1892,-0.426945,850 1893,-0.811639,850 1894,-0.208914,850 1895,-0.356789,850 1896,-0.0228084,850 1897,-0.556551,850 1898,0.182145,850 1899,-0.345005,850 1900,0.27639,850 1901,0.39368,850 1902,-0.560123,850 1903,-0.804859,850 1904,-0.921484,850 1905,-0.0588024,850 1906,-0.311883,850 1907,-0.881506,850 1908,-0.923667,850 1909,0.281777,850 1910,-0.668738,850 1911,-0.793477,850 1912,-1.2288,850 1913,0.520504,850 1914,-0.393703,850 1915,-1.20773,850 1916,-0.344933,850 1917,-0.775985,850 1918,0.0386931,850 1919,-0.141603,850 1920,-0.997056,850 1921,-0.261983,850 1922,0.157164,850 1923,-0.744369,850 1924,-0.183226,850 1925,-0.547749,850 1926,-0.0441557,850 1927,-1.6458,850 1928,-0.33209,850 1929,0.0849591,850 1930,0.254932,850 1931,-0.219342,850 1932,0.111084,850 1933,-0.277802,850 1934,0.58731,850 1935,0.320591,850 1936,1.18617,850 1937,1.26556,850 1938,0.756269,850 1939,0.180534,850 1940,-0.0738156,850 1941,-0.121577,850 1942,-0.206213,850 1943,0.668036,850 1944,-0.0435792,850 1945,-0.0562998,850 1946,-0.570158,850 1947,1.00877,850 1948,-0.102402,850 1949,0.0434739,850 1950,-1.15248,850 1951,-0.130015,850 1952,0.38723,850 1953,0.0155368,850 1954,0.054437,850 1955,0.971414,850 1956,-0.20559,850 1957,-0.181654,850 1958,0.689474,850 1959,0.651204,850 1960,0.0995136,850 1961,0.373843,850 1962,0.0585802,850 1963,0.00451048,850 1964,-0.696869,850 1965,-0.50635,850 1966,-0.577515,850 1967,-0.408291,850 1968,-0.727673,850 1969,0.728032,850 1970,0.823149,850 1971,0.0500332,850 1972,-0.142698,850 1973,0.399833,850 1974,-0.843967,850 1975,-0.170048,850 1976,-0.622678,850 1977,-0.0834306,850 1978,-0.0409526,850 1979,-0.495216,850 1980,0.526157,850 1981,0.15727,850 1982,0.0745949,850 1983,1.74736,850 1984,0.670757,850 1985,-0.46071,850 1986,-0.114632,850 1987,0.00101456,850 1988,0.964342,850 1989,-0.31502,850 1990,0.196649,850 1991,0.600038,850 1992,-1.15043,850 1993,0.0159363,850 1994,0.153544,850 1995,1.33768,850 1996,0.26433,850 1997,-0.0526346,850 1998,1.20301,850 1999,0.603973,850 2000,1.17681,850 2001,1.31289,850 2002,0.57303,850 2003,1.52837,850 2004,-0.911637,850 2005,0.764814,850 2006,0.887859,850 2007,1.53832,850 2008,0.269106,850 2009,0.0220147,850 2010,1.25348,850 2011,1.75837,850 2012,1.11451,850 2013,0.614381,850 2014,0.181566,850 2015,0.594135,850 2016,0.943747,850 2017,0.0724335,850 2018,0.935217,850 2019,1.02385,850