Year	Years
1950	28.66
1951	28.887
1952	29.345
1953	29.808
1954	30.275
1955	30.748
1956	31.225
1957	31.708
1958	32.195
1959	32.686
1960	33.182
1961	33.68
1962	34.181
1963	34.683
1964	35.183
1965	35.719
1966	36.336
1967	37.031
1968	37.761
1969	38.452
1970	38.914
1971	38.915
1972	38.362
1973	37.273
1974	35.764
1975	34.11
1976	32.671
1977	31.761
1978	31.581
1979	32.183
1980	33.494
1981	35.319
1982	37.335
1983	39.27
1984	40.998
1985	42.434
1986	43.567
1987	44.504
1988	45.346
1989	46.135
1990	46.934
1991	47.815
1992	48.811
1993	49.935
1994	51.18
1995	52.501
1996	53.828
1997	55.086
1998	56.226
1999	57.236
2000	58.146
2001	59.014
2002	59.903
2003	60.844
2004	61.832
2005	62.82
2006	63.741
2007	64.53
2008	65.147
2009	65.589
2010	65.879
2011	66.064
2012	66.21
2013	66.371
2014	66.571
2015	66.821
2016	67.113
2017	67.417
2018	67.71
2019	67.987
2020	68.245
2021	68.484
2022	68.709
2023	68.926
2024	69.135
2025	69.337
2026	69.533
2027	69.723
2028	69.908
2029	70.088
2030	70.265
2031	70.439
2032	70.609
2033	70.777
2034	70.941
2035	71.104
2036	71.264
2037	71.423
2038	71.579
2039	71.734
2040	71.888
2041	72.042
2042	72.195
2043	72.349
2044	72.502
2045	72.656
2046	72.809
2047	72.963
2048	73.115
2049	73.268
2050	73.42
2051	73.572
2052	73.725
2053	73.877
2054	74.031
2055	74.184
2056	74.338
2057	74.491
2058	74.644
2059	74.797
2060	74.951
2061	75.107
2062	75.265
2063	75.424
2064	75.586
2065	75.749
2066	75.912
2067	76.074
2068	76.234
2069	76.393
2070	76.55
2071	76.707
2072	76.864
2073	77.023
2074	77.184
2075	77.347
2076	77.511
2077	77.675
2078	77.839
2079	78.003
2080	78.167
2081	78.332
2082	78.498
2083	78.666
2084	78.836
2085	79.007
2086	79.179
2087	79.352
2088	79.525
2089	79.698
2090	79.871
2091	80.043
2092	80.214
2093	80.385
2094	80.556
2095	80.726
2096	80.896
2097	81.066
2098	81.235
2099	81.404