Year,Value,NumPoints
1949,-59.0978,1872
1950,-59.1369,1872
1951,-58.8983,1872
1952,-58.5279,1872
1953,-58.8097,1872
1954,-58.941,1872
1955,-59.1096,1872
1956,-58.5482,1872
1957,-58.9236,1872
1958,-58.7045,1872
1959,-59.1074,1872
1960,-59.0091,1872
1961,-59.8161,1872
1962,-59.4619,1872
1963,-58.5552,1872
1964,-58.1262,1872
1965,-58.8746,1872
1966,-59.3391,1872
1967,-59.2241,1872
1968,-59.1588,1872
1969,-59.0375,1872
1970,-59.1524,1872
1971,-59.6074,1872
1972,-58.972,1872
1973,-59.5431,1872
1974,-59.935,1872
1975,-59.2079,1872
1976,-59.3612,1872
1977,-59.3496,1872
1978,-59.1509,1872
1979,-58.4123,1872
1980,-58.6832,1872
1981,-59.0554,1872
1982,-58.4305,1872
1983,-58.3713,1872
1984,-58.7578,1872
1985,-59.6887,1872
1986,-58.9775,1872
1987,-59.187,1872
1988,-58.983,1872
1989,-59.3245,1872
1990,-58.8765,1872
1991,-58.5385,1872
1992,-58.0984,1872
1993,-59.1748,1872
1994,-59.3826,1872
1995,-59.5053,1872
1996,-59.5079,1872
1997,-60.0166,1872
1998,-59.9239,1872
1999,-60.5253,1872
2000,-60.4174,1872
2001,-59.7915,1872
2002,-59.386,1872
2003,-59.4525,1872
2004,-59.6435,1872
2005,-59.1956,1872
2006,-59.9325,1872
2007,-59.5585,1872
2008,-60.0048,1872
2009,-59.729,1872
2010,-59.5361,1872
2011,-60.0033,1872
2012,-59.7558,1872
2013,-59.4543,1872
2014,-59.5042,1872
2015,-59.6262,1872
2016,-59.3094,1872
2017,-59.4822,1872
2018,-59.5332,1872
2019,-59.4556,1872
2020,-58.9467,1872
2021,-60.1853,1872