Year,Value,NumPoints
1949,-1.10915,51
1950,0.975528,51
1951,-1.66584,51
1952,-2.04348,51
1953,-3.10313,51
1954,-0.885401,51
1955,-3.04775,51
1956,-1.30944,51
1957,-0.513504,51
1958,-3.29635,51
1959,-3.66074,51
1960,-2.59971,51
1961,-4.77828,51
1962,-0.534564,51
1963,-2.07017,51
1964,-2.6804,51
1965,-3.54517,51
1966,-4.17539,51
1967,-0.666823,51
1968,0.228128,51
1969,-1.56884,51
1970,-2.79529,51
1971,-1.2114,51
1972,-0.759543,51
1973,-0.391433,51
1974,-1.18509,51
1975,-0.615303,51
1976,-2.28147,51
1977,-4.20927,51
1978,-4.03784,51
1979,-3.30524,51
1980,-1.76692,51
1981,-3.80563,51
1982,-3.11826,51
1983,-2.98942,51
1984,-1.53874,51
1985,-4.30339,51
1986,-3.83272,51
1987,-2.19113,51
1988,-3.58888,51
1989,0.0338949,51
1990,-2.47007,51
1991,-1.28321,51
1992,-3.59291,51
1993,0.713293,51
1994,-4.13352,51
1995,-2.62548,51
1996,-1.8333,51
1997,-2.78235,51
1998,-3.98292,51
1999,-1.34156,51
2000,-0.409823,51
2001,-3.80992,51
2002,-1.72997,51
2003,-4.09387,51
2004,-3.65002,51
2005,-1.94211,51
2006,-1.19045,51
2007,-2.05065,51
2008,-1.30748,51
2009,-2.05519,51
2010,-3.06543,51
2011,-2.86614,51
2012,-0.931876,51
2013,-3.24354,51
2014,-3.42988,51
2015,-2.6524,51
2016,-4.39815,51
2017,-0.689114,51
2018,-2.72682,51
2019,-2.69785,51
2020,-1.76826,51