Year	Years
1950	37.895
1951	38.034
1952	38.314
1953	38.599
1954	38.889
1955	39.183
1956	39.483
1957	39.786
1958	40.092
1959	40.398
1960	40.701
1961	40.999
1962	41.286
1963	41.558
1964	41.812
1965	42.038
1966	42.228
1967	42.384
1968	42.51
1969	42.613
1970	42.701
1971	42.777
1972	42.857
1973	42.96
1974	43.108
1975	43.348
1976	43.734
1977	44.273
1978	44.945
1979	45.708
1980	46.555
1981	47.483
1982	48.402
1983	49.175
1984	49.641
1985	49.404
1986	48.015
1987	45.374
1988	41.627
1989	37.101
1990	32.504
1991	28.72
1992	26.429
1993	26.021
1994	27.537
1995	30.66
1996	34.763
1997	38.993
1998	42.683
1999	45.564
2000	47.585
2001	48.935
2002	50.052
2003	51.269
2004	52.661
2005	54.23
2006	55.904
2007	57.536
2008	59.006
2009	60.282
2010	61.348
2011	62.215
2012	62.934
2013	63.551
2014	64.087
2015	64.556
2016	64.966
2017	65.32
2018	65.626
2019	65.897
2020	66.146
2021	66.384
2022	66.613
2023	66.837
2024	67.062
2025	67.293
2026	67.529
2027	67.766
2028	68.001
2029	68.233
2030	68.461
2031	68.685
2032	68.905
2033	69.121
2034	69.33
2035	69.533
2036	69.729
2037	69.918
2038	70.099
2039	70.274
2040	70.442
2041	70.605
2042	70.763
2043	70.919
2044	71.073
2045	71.228
2046	71.384
2047	71.543
2048	71.705
2049	71.87
2050	72.04
2051	72.214
2052	72.392
2053	72.572
2054	72.755
2055	72.939
2056	73.124
2057	73.308
2058	73.49
2059	73.67
2060	73.847
2061	74.02
2062	74.189
2063	74.355
2064	74.516
2065	74.673
2066	74.823
2067	74.968
2068	75.108
2069	75.242
2070	75.372
2071	75.499
2072	75.624
2073	75.748
2074	75.871
2075	75.994
2076	76.117
2077	76.239
2078	76.359
2079	76.478
2080	76.597
2081	76.715
2082	76.833
2083	76.952
2084	77.071
2085	77.19
2086	77.31
2087	77.43
2088	77.549
2089	77.668
2090	77.787
2091	77.904
2092	78.022
2093	78.139
2094	78.255
2095	78.371
2096	78.487
2097	78.603
2098	78.718
2099	78.833