Year	Years
1950	42.393
1951	42.52
1952	42.777
1953	43.037
1954	43.302
1955	43.569
1956	43.84
1957	44.115
1958	44.392
1959	44.67
1960	44.949
1961	45.227
1962	45.503
1963	45.777
1964	46.05
1965	46.322
1966	46.597
1967	46.876
1968	47.161
1969	47.448
1970	47.736
1971	48.017
1972	48.289
1973	48.55
1974	48.801
1975	49.044
1976	49.279
1977	49.515
1978	49.759
1979	50.018
1980	50.301
1981	50.619
1982	50.973
1983	51.364
1984	51.794
1985	52.258
1986	52.753
1987	53.27
1988	53.799
1989	54.335
1990	54.872
1991	55.409
1992	55.945
1993	56.482
1994	57.017
1995	57.554
1996	58.092
1997	58.634
1998	59.183
1999	59.737
2000	60.297
2001	60.864
2002	61.436
2003	62.008
2004	62.579
2005	63.142
2006	63.695
2007	64.234
2008	64.756
2009	65.259
2010	65.74
2011	66.197
2012	66.633
2013	67.051
2014	67.45
2015	67.836
2016	68.208
2017	68.571
2018	68.927
2019	69.276
2020	69.618
2021	69.954
2022	70.282
2023	70.601
2024	70.91
2025	71.21
2026	71.503
2027	71.788
2028	72.068
2029	72.341
2030	72.609
2031	72.872
2032	73.128
2033	73.378
2034	73.623
2035	73.862
2036	74.095
2037	74.323
2038	74.546
2039	74.764
2040	74.978
2041	75.188
2042	75.392
2043	75.593
2044	75.788
2045	75.98
2046	76.168
2047	76.352
2048	76.533
2049	76.711
2050	76.886
2051	77.059
2052	77.228
2053	77.395
2054	77.56
2055	77.723
2056	77.884
2057	78.043
2058	78.2
2059	78.356
2060	78.511
2061	78.664
2062	78.817
2063	78.968
2064	79.119
2065	79.267
2066	79.414
2067	79.558
2068	79.699
2069	79.838
2070	79.976
2071	80.111
2072	80.246
2073	80.381
2074	80.515
2075	80.649
2076	80.782
2077	80.913
2078	81.043
2079	81.171
2080	81.297
2081	81.424
2082	81.55
2083	81.677
2084	81.805
2085	81.932
2086	82.06
2087	82.186
2088	82.31
2089	82.433
2090	82.554
2091	82.674
2092	82.793
2093	82.911
2094	83.029
2095	83.146
2096	83.264
2097	83.381
2098	83.499
2099	83.616
