Year	Years
1950	39.712
1951	39.9
1952	40.264
1953	40.608
1954	40.929
1955	41.23
1956	41.51
1957	41.771
1958	42.015
1959	42.244
1960	42.465
1961	42.681
1962	42.9
1963	43.127
1964	43.367
1965	43.63
1966	43.922
1967	44.242
1968	44.584
1969	44.94
1970	45.295
1971	45.63
1972	45.93
1973	46.192
1974	46.415
1975	46.612
1976	46.8
1977	47
1978	47.225
1979	47.479
1980	47.757
1981	48.047
1982	48.335
1983	48.608
1984	48.864
1985	49.112
1986	49.365
1987	49.634
1988	49.918
1989	50.206
1990	50.464
1991	50.648
1992	50.735
1993	50.727
1994	50.646
1995	50.539
1996	50.469
1997	50.496
1998	50.665
1999	50.991
2000	51.478
2001	52.106
2002	52.825
2003	53.586
2004	54.359
2005	55.116
2006	55.84
2007	56.527
2008	57.175
2009	57.778
2010	58.333
2011	58.844
2012	59.325
2013	59.787
2014	60.235
2015	60.676
2016	61.112
2017	61.543
2018	61.97
2019	62.394
2020	62.817
2021	63.238
2022	63.656
2023	64.07
2024	64.48
2025	64.884
2026	65.285
2027	65.681
2028	66.073
2029	66.458
2030	66.838
2031	67.209
2032	67.573
2033	67.927
2034	68.272
2035	68.609
2036	68.938
2037	69.26
2038	69.575
2039	69.885
2040	70.189
2041	70.488
2042	70.78
2043	71.067
2044	71.348
2045	71.622
2046	71.892
2047	72.156
2048	72.415
2049	72.668
2050	72.916
2051	73.159
2052	73.395
2053	73.626
2054	73.851
2055	74.072
2056	74.288
2057	74.502
2058	74.712
2059	74.92
2060	75.124
2061	75.326
2062	75.523
2063	75.716
2064	75.905
2065	76.089
2066	76.269
2067	76.445
2068	76.619
2069	76.789
2070	76.958
2071	77.125
2072	77.291
2073	77.456
2074	77.619
2075	77.781
2076	77.942
2077	78.1
2078	78.257
2079	78.411
2080	78.564
2081	78.716
2082	78.868
2083	79.02
2084	79.172
2085	79.324
2086	79.475
2087	79.625
2088	79.772
2089	79.918
2090	80.061
2091	80.203
2092	80.343
2093	80.481
2094	80.618
2095	80.754
2096	80.89
2097	81.024
2098	81.157
2099	81.29