Year	Years
1950	37.954
1951	38.35
1952	39.132
1953	39.896
1954	40.641
1955	41.368
1956	42.077
1957	42.769
1958	43.445
1959	44.107
1960	44.758
1961	45.399
1962	46.032
1963	46.655
1964	47.264
1965	47.848
1966	48.39
1967	48.886
1968	49.337
1969	49.751
1970	50.15
1971	50.566
1972	51.017
1973	51.515
1974	52.055
1975	52.618
1976	53.17
1977	53.682
1978	54.132
1979	54.521
1980	54.864
1981	55.194
1982	55.541
1983	55.923
1984	56.338
1985	56.781
1986	57.239
1987	57.678
1988	58.063
1989	58.366
1990	58.548
1991	58.576
1992	58.444
1993	58.156
1994	57.72
1995	57.139
1996	56.42
1997	55.603
1998	54.745
1999	53.899
2000	53.126
2001	52.479
2002	51.993
2003	51.697
2004	51.621
2005	51.801
2006	52.261
2007	52.97
2008	53.875
2009	54.927
2010	56.059
2011	57.201
2012	58.293
2013	59.283
2014	60.136
2015	60.834
2016	61.381
2017	61.821
2018	62.196
2019	62.524
2020	62.827
2021	63.118
2022	63.407
2023	63.699
2024	64.004
2025	64.326
2026	64.662
2027	65.004
2028	65.345
2029	65.681
2030	66.012
2031	66.336
2032	66.654
2033	66.966
2034	67.272
2035	67.572
2036	67.865
2037	68.153
2038	68.435
2039	68.712
2040	68.984
2041	69.252
2042	69.516
2043	69.775
2044	70.03
2045	70.28
2046	70.526
2047	70.766
2048	71.001
2049	71.23
2050	71.453
2051	71.669
2052	71.88
2053	72.083
2054	72.282
2055	72.474
2056	72.663
2057	72.848
2058	73.029
2059	73.206
2060	73.38
2061	73.547
2062	73.708
2063	73.863
2064	74.011
2065	74.153
2066	74.292
2067	74.429
2068	74.565
2069	74.701
2070	74.838
2071	74.975
2072	75.111
2073	75.247
2074	75.382
2075	75.517
2076	75.65
2077	75.784
2078	75.918
2079	76.051
2080	76.185
2081	76.319
2082	76.453
2083	76.587
2084	76.721
2085	76.855
2086	76.989
2087	77.123
2088	77.257
2089	77.391
2090	77.525
2091	77.659
2092	77.793
2093	77.927
2094	78.061
2095	78.195
2096	78.329
2097	78.463
2098	78.597
2099	78.731