Year,Value,NumPoints
1949,-9.99502,2880
1950,-10.4803,2880
1951,-10.7231,2880
1952,-10.6102,2880
1953,-10.0772,2880
1954,-9.92555,2880
1955,-10.7872,2880
1956,-10.3077,2880
1957,-10.1895,2880
1958,-10.5632,2880
1959,-10.1086,2880
1960,-10.4364,2880
1961,-10.9231,2880
1962,-10.4841,2880
1963,-11.0022,2880
1964,-11.3581,2880
1965,-10.9162,2880
1966,-11.3256,2880
1967,-10.4887,2880
1968,-10.8642,2880
1969,-10.8503,2880
1970,-10.7739,2880
1971,-10.6973,2880
1972,-10.9909,2880
1973,-10.4718,2880
1974,-10.8368,2880
1975,-10.5629,2880
1976,-10.6891,2880
1977,-10.5282,2880
1978,-10.9449,2880
1979,-10.8929,2880
1980,-9.85002,2880
1981,-9.16024,2880
1982,-10.9774,2880
1983,-10.5816,2880
1984,-10.4329,2880
1985,-10.4064,2880
1986,-10.6315,2880
1987,-11.0295,2880
1988,-10.2443,2880
1989,-10.3198,2880
1990,-10.1486,2880
1991,-9.97014,2880
1992,-10.7066,2880
1993,-10.3831,2880
1994,-10.554,2880
1995,-9.5019,2880
1996,-9.94248,2880
1997,-9.86814,2880
1998,-9.68898,2880
1999,-9.93937,2880
2000,-9.35066,2880
2001,-9.37958,2880
2002,-9.31639,2880
2003,-8.81539,2880
2004,-9.58279,2880
2005,-8.47342,2880
2006,-8.7499,2880
2007,-8.62968,2880
2008,-9.16392,2880
2009,-9.03008,2880
2010,-8.48676,2880
2011,-8.61264,2880
2012,-8.63657,2880
2013,-9.08595,2880
2014,-8.56334,2880
2015,-8.69016,2880
2016,-7.29527,2880
2017,-7.99411,2880
2018,-8.337,2880
2019,-8.03375,2880
2020,-8.39917,2880
2021,-9.16674,2880
2022,-8.20866,2880
2023,-8.42637,2880