Year,Value,NumPoints
1981,290.029,105127
1982,289.94,105126
1983,289.936,105126
1984,289.869,105127
1985,289.832,105126
1986,289.864,105122
1987,289.955,105124
1988,289.839,105122
1989,289.897,105125
1990,289.95,105122
1991,289.943,105126
1992,289.918,105125
1993,289.904,105123
1994,289.841,105126
1995,289.85,105126
1996,289.866,105128
1997,290.041,105126
1998,289.98,105123
1999,289.871,105125
2000,289.912,105123
2001,289.965,105126
2002,289.985,105127
2003,290.044,105128
2004,290.035,105126
2005,289.978,105124
2006,289.949,105128
2007,289.865,105128
2008,289.917,105128
2009,290.012,105128
2010,289.903,105128
2011,289.895,105128
2012,290,105128
2013,289.991,105128
2014,290.027,105128
2015,290.132,105128
2016,290.117,105128
2017,290.132,105128
2018,290.089,105128
2019,290.145,105128