Year	Years
1950	66.03
1951	66.199
1952	66.518
1953	66.799
1954	67.042
1955	67.249
1956	67.419
1957	67.555
1958	67.661
1959	67.744
1960	67.811
1961	67.871
1962	67.934
1963	68.006
1964	68.091
1965	68.189
1966	68.293
1967	68.396
1968	68.495
1969	68.589
1970	68.681
1971	68.776
1972	68.88
1973	68.997
1974	69.132
1975	69.289
1976	69.47
1977	69.675
1978	69.898
1979	70.137
1980	70.383
1981	70.631
1982	70.873
1983	71.105
1984	71.328
1985	71.543
1986	71.757
1987	71.975
1988	72.204
1989	72.442
1990	72.688
1991	72.934
1992	73.177
1993	73.413
1994	73.643
1995	73.871
1996	74.103
1997	74.347
1998	74.606
1999	74.882
2000	75.174
2001	75.482
2002	75.799
2003	76.12
2004	76.44
2005	76.754
2006	77.059
2007	77.352
2008	77.632
2009	77.897
2010	78.145
2011	78.374
2012	78.587
2013	78.786
2014	78.975
2015	79.156
2016	79.332
2017	79.507
2018	79.682
2019	79.86
2020	80.042
2021	80.227
2022	80.414
2023	80.602
2024	80.789
2025	80.978
2026	81.167
2027	81.358
2028	81.55
2029	81.742
2030	81.934
2031	82.126
2032	82.317
2033	82.505
2034	82.691
2035	82.871
2036	83.047
2037	83.217
2038	83.382
2039	83.541
2040	83.694
2041	83.841
2042	83.984
2043	84.123
2044	84.257
2045	84.389
2046	84.516
2047	84.641
2048	84.762
2049	84.881
2050	84.997
2051	85.112
2052	85.225
2053	85.338
2054	85.449
2055	85.561
2056	85.673
2057	85.786
2058	85.899
2059	86.012
2060	86.126
2061	86.239
2062	86.352
2063	86.465
2064	86.576
2065	86.686
2066	86.796
2067	86.906
2068	87.015
2069	87.125
2070	87.234
2071	87.344
2072	87.455
2073	87.566
2074	87.677
2075	87.788
2076	87.901
2077	88.014
2078	88.127
2079	88.24
2080	88.354
2081	88.469
2082	88.583
2083	88.698
2084	88.812
2085	88.926
2086	89.04
2087	89.153
2088	89.264
2089	89.375
2090	89.486
2091	89.596
2092	89.706
2093	89.816
2094	89.927
2095	90.038
2096	90.15
2097	90.263
2098	90.376
2099	90.49