Year,Value,NumPoints
1970,0.0234025,16017
1971,-0.0861176,16034
1972,0.0022708,16021
1973,0.157108,15978
1974,-0.0657397,15988
1975,-0.0217,16022
1976,-0.110392,16017
1977,0.177396,16023
1978,0.0646459,16018
1979,0.159192,16022
1980,0.259225,16021
1981,0.325021,16022
1982,0.128008,16018
1983,0.309755,16025
1984,0.149408,16029
1985,0.111049,16022
1986,0.178787,16052
1987,0.312928,16047
1988,0.384515,16032
1989,0.269469,16030
1990,0.443255,16044
1991,0.409029,16053
1992,0.213851,16018
1993,0.222746,16001
1994,0.313873,16051
1995,0.442521,16046
1996,0.344713,16022
1997,0.461429,16073
1998,0.608087,16077
1999,0.374451,16029
2000,0.396486,16047
2001,0.534794,16023
2002,0.631552,16023
2003,0.623378,16022
2004,0.536828,16018
2005,0.67961,16022
2006,0.638839,16043
2007,0.670959,16063
2008,0.539913,16047
2009,0.662692,16071
2010,0.729111,16079
2011,0.610542,16060
2012,0.64397,16080
2013,0.681553,16071
2014,0.741335,16080
2015,0.890202,16080
2016,1.02452,16080
2017,0.921514,16080
2018,0.850069,16080
2019,0.977612,16079
2020,1.01288,16079
2021,0.85123,16079
2022,0.898647,16080
2023,1.17149,16080