Year,Value,NumPoints
1949,14.9097,51
1950,16.6208,51
1951,16.4896,51
1952,15.9432,51
1953,16.8826,51
1954,15.5244,51
1955,16.099,51
1956,15.5423,51
1957,16.2049,51
1958,16.8439,51
1959,14.6309,51
1960,14.3986,51
1961,15.6108,51
1962,15.8483,51
1963,14.3244,51
1964,14.6577,51
1965,14.0276,51
1966,14.9662,51
1967,15.3765,51
1968,15.0874,51
1969,16.0549,51
1970,14.8477,51
1971,15.7667,51
1972,15.3772,51
1973,14.4284,51
1974,13.7643,51
1975,15.3363,51
1976,14.0994,51
1977,14.4174,51
1978,15.0871,51
1979,15.1527,51
1980,16.1534,51
1981,14.6528,51
1982,15.7679,51
1983,15.4044,51
1984,15.4908,51
1985,14.819,51
1986,15.7856,51
1987,15.9102,51
1988,15.7431,51
1989,16.1054,51
1990,15.9659,51
1991,15.3588,51
1992,15.8961,51
1993,16.0979,51
1994,16.234,51
1995,16.1338,51
1996,15.3661,51
1997,16.1108,51
1998,16.706,51
1999,16.3488,51
2000,15.4788,51
2001,16.0806,51
2002,15.3444,51
2003,16.1448,51
2004,17.9739,51
2005,15.7093,51
2006,16.4808,51
2007,16.7184,51
2008,15.6373,51
2009,16.1025,51
2010,15.9644,51
2011,15.5633,51
2012,16.1201,51
2013,17.3218,51
2014,15.4029,51
2015,15.6125,51
2016,16.3738,51
2017,16.7169,51
2018,15.9272,51
2019,17.8784,51