Year	Years
1950	55.28
1951	55.757
1952	56.693
1953	57.588
1954	58.442
1955	59.256
1956	60.03
1957	60.762
1958	61.453
1959	62.103
1960	62.711
1961	63.277
1962	63.802
1963	64.287
1964	64.737
1965	65.151
1966	65.531
1967	65.879
1968	66.202
1969	66.507
1970	66.804
1971	67.104
1972	67.41
1973	67.726
1974	68.052
1975	68.386
1976	68.725
1977	69.059
1978	69.376
1979	69.666
1980	69.918
1981	70.121
1982	70.271
1983	70.367
1984	70.409
1985	70.4
1986	70.344
1987	70.25
1988	70.134
1989	70.006
1990	69.875
1991	69.749
1992	69.632
1993	69.53
1994	69.45
1995	69.398
1996	69.376
1997	69.384
1998	69.421
1999	69.491
2000	69.6
2001	69.755
2002	69.956
2003	70.2
2004	70.48
2005	70.789
2006	71.12
2007	71.46
2008	71.798
2009	72.124
2010	72.426
2011	72.695
2012	72.933
2013	73.141
2014	73.32
2015	73.474
2016	73.611
2017	73.738
2018	73.865
2019	73.994
2020	74.13
2021	74.272
2022	74.417
2023	74.562
2024	74.707
2025	74.853
2026	74.999
2027	75.145
2028	75.291
2029	75.438
2030	75.585
2031	75.734
2032	75.885
2033	76.038
2034	76.193
2035	76.35
2036	76.508
2037	76.667
2038	76.827
2039	76.987
2040	77.147
2041	77.308
2042	77.47
2043	77.633
2044	77.797
2045	77.963
2046	78.128
2047	78.294
2048	78.46
2049	78.626
2050	78.792
2051	78.959
2052	79.128
2053	79.298
2054	79.47
2055	79.643
2056	79.817
2057	79.99
2058	80.163
2059	80.334
2060	80.505
2061	80.676
2062	80.848
2063	81.021
2064	81.195
2065	81.368
2066	81.542
2067	81.714
2068	81.884
2069	82.051
2070	82.215
2071	82.376
2072	82.535
2073	82.69
2074	82.843
2075	82.993
2076	83.139
2077	83.281
2078	83.42
2079	83.555
2080	83.687
2081	83.815
2082	83.941
2083	84.064
2084	84.184
2085	84.303
2086	84.42
2087	84.535
2088	84.648
2089	84.759
2090	84.87
2091	84.979
2092	85.088
2093	85.195
2094	85.302
2095	85.408
2096	85.514
2097	85.618
2098	85.723
2099	85.826