Year,Value,NumPoints 1900,-0.195751,12431 1901,-0.0622116,12539 1902,-0.148292,12530 1903,-0.293518,12592 1904,-0.405759,12697 1905,-0.453802,12757 1906,-0.252536,12759 1907,-0.239013,12762 1908,-0.39819,12850 1909,-0.448364,12863 1910,-0.4617,12872 1911,-0.454722,12887 1912,-0.412751,12830 1913,-0.384762,12910 1914,-0.308658,12916 1915,-0.179685,12947 1916,-0.133256,12959 1917,-0.405313,12964 1918,-0.466009,12949 1919,-0.283937,12931 1920,-0.28179,12931 1921,-0.25855,12927 1922,-0.208222,12964 1923,-0.277761,12973 1924,-0.255725,12981 1925,-0.27282,12999 1926,-0.161476,13012 1927,-0.132917,13058 1928,-0.188047,13096 1929,-0.22722,13106 1930,-0.339906,13116 1931,-0.128739,13374 1932,-0.0486387,13880 1933,-0.177176,13882 1934,-0.278773,13885 1935,-0.123898,13573 1936,-0.183159,13137 1937,-0.112133,13762 1938,0.00606484,13884 1939,-0.00643308,13886 1940,-0.00669926,13892 1941,0.155835,13889 1942,0.211411,13898 1943,0.0470203,13893 1944,0.125195,13597 1945,0.187836,13248 1946,0.0974568,13431 1947,-0.0811585,14018 1948,-0.00146509,14026 1949,-0.0976987,14038 1950,-0.133461,14018 1951,-0.18198,14153 1952,-0.0220642,14200 1953,0.0185553,13996 1954,0.0695034,13986 1955,-0.0965251,14195 1956,-0.157863,14477 1957,-0.184869,14927 1958,0.0918164,16090 1959,0.0320632,16057 1960,0.0191889,16104 1961,-0.0238379,16104 1962,0.0546903,16102 1963,0.0255894,16042 1964,0.0500706,16104 1965,-0.200473,16106 1966,-0.121055,16107 1967,-0.0502964,16107 1968,-0.034048,16104 1969,-0.0648601,16105 1970,0.0643806,16016 1971,0.0137899,16024 1972,-0.10439,16034 1973,0.0451632,16019 1974,0.12549,15978 1975,-0.0504211,15990 1976,-0.0331157,16015 1977,-0.0903885,16017 1978,0.165438,16023 1979,0.0675403,16018 1980,0.177225,16022 1981,0.277894,16021 1982,0.285975,16022 1983,0.168603,16018 1984,0.291657,16025 1985,0.144869,16030 1986,0.113638,16029 1987,0.184723,16052 1988,0.334136,16040 1989,0.346684,16032 1990,0.294755,16029 1991,0.445251,16045 1992,0.414545,16060 1993,0.202586,16010 1994,0.216035,16001 1995,0.337159,16049 1996,0.420362,16039 1997,0.350524,16015 1998,0.481622,16076 1999,0.600107,16077 2000,0.356127,16030 2001,0.41537,16037 2002,0.562586,16015 2003,0.63148,16014 2004,0.609971,16013 2005,0.54968,16010 2006,0.663785,16014 2007,0.676037,16044 2008,0.611251,16063 2009,0.568894,16047 2010,0.673079,16071 2011,0.709326,16072 2012,0.605954,16062 2013,0.665661,16080 2014,0.6861,16071 2015,0.748372,16080 2016,0.917583,16080 2017,1.01216,16080 2018,0.903529,16080 2019,0.858227,16080 2020,0.997423,16079 2021,0.986222,16079 2022,0.861081,16079 2023,0.896562,16080