Year,Value,NumPoints
1949,-57.9539,1872
1950,-57.0415,1872
1951,-57.4625,1872
1952,-57.211,1872
1953,-57.0193,1872
1954,-57.2052,1872
1955,-57.1739,1872
1956,-56.7538,1872
1957,-56.7854,1872
1958,-56.5955,1872
1959,-56.7408,1872
1960,-56.6626,1872
1961,-56.8477,1872
1962,-57.0518,1872
1963,-56.1863,1872
1964,-55.9358,1872
1965,-56.6853,1872
1966,-56.4203,1872
1967,-55.7782,1872
1968,-56.2931,1872
1969,-56.0761,1872
1970,-55.9752,1872
1971,-55.5493,1872
1972,-55.9016,1872
1973,-56.0021,1872
1974,-56.3736,1872
1975,-55.3632,1872
1976,-56.3237,1872
1977,-55.4595,1872
1978,-55.1997,1872
1979,-54.1994,1872
1980,-54.1286,1872
1981,-54.5914,1872
1982,-53.794,1872
1983,-54.1523,1872
1984,-54.0405,1872
1985,-54.6466,1872
1986,-54.3782,1872
1987,-54.5674,1872
1988,-53.8277,1872
1989,-54.048,1872
1990,-53.415,1872
1991,-53.8707,1872
1992,-53.8071,1872
1993,-54.4848,1872
1994,-54.4383,1872
1995,-54.6596,1872
1996,-54.2306,1872
1997,-54.4151,1872
1998,-54.4433,1872
1999,-54.9508,1872
2000,-54.7857,1872
2001,-54.4037,1872
2002,-54.1485,1872
2003,-54.426,1872
2004,-54.3221,1872
2005,-54.3537,1872
2006,-54.5426,1872
2007,-54.3521,1872
2008,-54.5477,1872
2009,-54.5214,1872
2010,-54.06,1872
2011,-54.473,1872
2012,-54.2926,1872
2013,-54.0572,1872
2014,-54.2542,1872
2015,-54.3277,1872
2016,-54.193,1872
2017,-54.1667,1872
2018,-54.6647,1872
2019,-54.3354,1872
2020,-53.5537,1872
2021,-54.5814,1872