Year	Years
1950	39.817
1951	40.011
1952	40.4
1953	40.793
1954	41.192
1955	41.595
1956	42.001
1957	42.41
1958	42.819
1959	43.224
1960	43.622
1961	44.008
1962	44.38
1963	44.738
1964	45.086
1965	45.433
1966	45.796
1967	46.183
1968	46.595
1969	47.028
1970	47.477
1971	47.935
1972	48.383
1973	48.799
1974	49.163
1975	49.455
1976	49.659
1977	49.768
1978	49.775
1979	49.671
1980	49.44
1981	49.07
1982	48.569
1983	47.959
1984	47.262
1985	46.502
1986	45.7
1987	44.889
1988	44.103
1989	43.376
1990	42.733
1991	42.192
1992	41.754
1993	41.425
1994	41.221
1995	41.158
1996	41.245
1997	41.48
1998	41.857
1999	42.372
2000	43.023
2001	43.809
2002	44.715
2003	45.725
2004	46.818
2005	47.992
2006	49.249
2007	50.578
2008	51.947
2009	53.315
2010	54.624
2011	55.813
2012	56.847
2013	57.708
2014	58.389
2015	58.903
2016	59.281
2017	59.578
2018	59.845
2019	60.111
2020	60.395
2021	60.707
2022	61.034
2023	61.37
2024	61.715
2025	62.072
2026	62.439
2027	62.81
2028	63.181
2029	63.549
2030	63.914
2031	64.273
2032	64.627
2033	64.975
2034	65.316
2035	65.651
2036	65.979
2037	66.3
2038	66.614
2039	66.92
2040	67.218
2041	67.506
2042	67.785
2043	68.053
2044	68.312
2045	68.562
2046	68.805
2047	69.042
2048	69.275
2049	69.505
2050	69.731
2051	69.954
2052	70.173
2053	70.387
2054	70.598
2055	70.805
2056	71.011
2057	71.214
2058	71.416
2059	71.617
2060	71.817
2061	72.017
2062	72.214
2063	72.409
2064	72.601
2065	72.791
2066	72.979
2067	73.163
2068	73.345
2069	73.523
2070	73.697
2071	73.866
2072	74.028
2073	74.185
2074	74.337
2075	74.483
2076	74.626
2077	74.766
2078	74.904
2079	75.042
2080	75.179
2081	75.317
2082	75.453
2083	75.589
2084	75.724
2085	75.858
2086	75.992
2087	76.124
2088	76.256
2089	76.387
2090	76.517
2091	76.647
2092	76.776
2093	76.905
2094	77.034
2095	77.162
2096	77.289
2097	77.417
2098	77.544
2099	77.671