Year,Value,NumPoints
1981,284.232,105122
1982,284.2,105126
1983,284.141,105124
1984,284.156,105124
1985,284.127,105128
1986,284.112,105126
1987,284.046,105126
1988,284.115,105125
1989,284.124,105128
1990,284.101,105126
1991,284.131,105125
1992,284.139,105127
1993,284.114,105126
1994,284.117,105123
1995,284.068,105126
1996,284.132,105128
1997,284.169,105128
1998,284.153,105127
1999,284.155,105126
2000,284.14,105126
2001,284.151,105122
2002,284.146,105126
2003,284.173,105127
2004,284.212,105125
2005,284.185,105127
2006,284.163,105128
2007,284.149,105128
2008,284.204,105128
2009,284.173,105128
2010,284.202,105128
2011,284.258,105128
2012,284.233,105128
2013,284.211,105128
2014,284.221,105128
2015,284.234,105128
2016,284.231,105128
2017,284.24,105128
2018,284.272,105128
2019,284.289,105128
2020,284.271,105128