Year,Value,NumPoints
1949,-54.9647,1872
1950,-55.1343,1872
1951,-54.3409,1872
1952,-53.6662,1872
1953,-54.1447,1872
1954,-54.6635,1872
1955,-54.742,1872
1956,-53.9919,1872
1957,-54.4527,1872
1958,-53.0546,1872
1959,-54.5075,1872
1960,-53.5886,1872
1961,-54.6187,1872
1962,-53.8033,1872
1963,-53.7561,1872
1964,-52.432,1872
1965,-53.0523,1872
1966,-54.6885,1872
1967,-53.3951,1872
1968,-53.6423,1872
1969,-53.5667,1872
1970,-53.3458,1872
1971,-53.9526,1872
1972,-52.9186,1872
1973,-54.0762,1872
1974,-54.246,1872
1975,-54.8037,1872
1976,-55.021,1872
1977,-54.4301,1872
1978,-54.2296,1872
1979,-52.854,1872
1980,-53.2395,1872
1981,-53.062,1872
1982,-53.4269,1872
1983,-52.7271,1872
1984,-53.273,1872
1985,-54.0672,1872
1986,-53.0984,1872
1987,-54.5139,1872
1988,-53.4969,1872
1989,-54.3475,1872
1990,-53.9424,1872
1991,-52.9661,1872
1992,-52.9434,1872
1993,-53.773,1872
1994,-54.2048,1872
1995,-54.3488,1872
1996,-54.5347,1872
1997,-54.8649,1872
1998,-55.1266,1872
1999,-54.8405,1872
2000,-54.8872,1872
2001,-55.4004,1872
2002,-53.8083,1872
2003,-54.75,1872
2004,-54.5875,1872
2005,-54.2667,1872
2006,-55.3836,1872
2007,-54.5072,1872
2008,-55.6031,1872
2009,-54.9704,1872
2010,-55.5219,1872
2011,-54.9565,1872
2012,-55.1978,1872
2013,-55.1072,1872
2014,-54.6098,1872
2015,-55.4872,1872
2016,-54.7954,1872
2017,-54.5848,1872
2018,-55.3727,1872
2019,-54.6168,1872
2020,-55.1782,1872
2021,-55.5423,1872