Year,Value,NumPoints 1895,0.151962,230 1896,1.06225,230 1897,-0.141606,230 1898,-1.7601,230 1899,-0.167125,230 1900,0.317115,230 1901,1.38769,230 1902,-3.00047,230 1903,-2.41435,230 1904,0.653634,230 1905,-1.56564,230 1906,-0.262817,230 1907,1.73796,230 1908,-0.34272,230 1909,1.96268,230 1910,-1.30694,230 1911,-1.32624,230 1912,-3.15836,230 1913,-1.455,230 1914,-1.07906,230 1915,-1.84919,230 1916,-1.57453,230 1917,0.574864,230 1918,1.27987,230 1919,-0.770807,230 1920,-2.31359,230 1921,-0.659928,230 1922,-1.75607,230 1923,1.36161,230 1924,1.10277,230 1925,-1.68562,230 1926,-2.1683,230 1927,-0.992312,230 1928,-0.722781,230 1929,1.30015,230 1930,0.260974,230 1931,-0.517089,230 1932,-0.199533,230 1933,0.35812,230 1934,1.44052,230 1935,1.10811,230 1936,-1.35959,230 1937,1.66434,230 1938,1.39441,230 1939,-1.82575,230 1940,-1.02993,230 1941,-1.66358,230 1942,0.419407,230 1943,1.03574,230 1944,1.41629,230 1945,-1.09363,230 1946,-2.0071,230 1947,-0.267918,230 1948,0.0714061,230 1949,0.373547,230 1950,0.896315,230 1951,0.402915,230 1952,-1.32648,230 1953,1.28384,230 1954,0.429679,230 1955,0.76146,230 1956,-0.439797,230 1957,0.399774,230 1958,1.26116,230 1959,-0.75642,230 1960,-1.73019,230 1961,3.10136,230 1962,0.955362,230 1963,0.979585,230 1964,1.16403,230 1965,0.103099,230 1966,-0.208396,230 1967,2.06051,230 1968,-2.03328,230 1969,0.406069,230 1970,0.184755,230 1971,-0.555741,230 1972,0.0977018,230 1973,-1.94155,230 1974,0.538402,230 1975,-0.145157,230 1976,-2.56697,230 1977,-0.462965,230 1978,-0.369612,230 1979,-1.24965,230 1980,-0.345113,230 1981,1.33739,230 1982,-0.111308,230 1983,0.697149,230 1984,1.1579,230 1985,1.07899,230 1986,0.659932,230 1987,1.62099,230 1988,0.217374,230 1989,0.621103,230 1990,0.623481,230 1991,1.34705,230 1992,-3.37033,230 1993,-0.950914,230 1994,0.130172,230 1995,1.98601,230 1996,1.28077,230 1997,-0.700938,230 1998,0.566765,230 1999,1.8087,230 2000,2.92937,230 2001,1.5044,230 2002,-1.80429,230 2003,-0.21742,230 2004,0.967195,230 2005,2.32215,230 2006,1.48123,230 2007,1.92561,230 2008,2.19497,230 2009,-0.302876,230 2010,0.309745,230 2011,2.0565,230 2012,1.10103,230 2013,1.31431,230 2014,0.288706,230 2015,0.548467,230 2016,0.497354,230 2017,1.1319,230 2018,1.66181,230 2019,0.763832,230