Year	Years
1950	42.55
1951	42.784
1952	43.243
1953	43.684
1954	44.107
1955	44.51
1956	44.894
1957	45.26
1958	45.606
1959	45.934
1960	46.243
1961	46.535
1962	46.816
1963	47.093
1964	47.377
1965	47.685
1966	48.034
1967	48.434
1968	48.887
1969	49.395
1970	49.948
1971	50.535
1972	51.136
1973	51.741
1974	52.344
1975	52.946
1976	53.556
1977	54.184
1978	54.836
1979	55.513
1980	56.225
1981	56.983
1982	57.777
1983	58.588
1984	59.39
1985	60.159
1986	60.877
1987	61.512
1988	62.022
1989	62.366
1990	62.483
1991	62.315
1992	61.852
1993	61.103
1994	60.088
1995	58.813
1996	57.292
1997	55.597
1998	53.83
1999	52.094
2000	50.514
2001	49.201
2002	48.222
2003	47.624
2004	47.445
2005	47.72
2006	48.457
2007	49.571
2008	50.952
2009	52.508
2010	54.128
2011	55.705
2012	57.164
2013	58.446
2014	59.505
2015	60.32
2016	60.908
2017	61.34
2018	61.682
2019	61.965
2020	62.217
2021	62.455
2022	62.684
2023	62.911
2024	63.149
2025	63.406
2026	63.684
2027	63.974
2028	64.272
2029	64.576
2030	64.887
2031	65.204
2032	65.525
2033	65.849
2034	66.176
2035	66.503
2036	66.831
2037	67.159
2038	67.488
2039	67.814
2040	68.136
2041	68.452
2042	68.762
2043	69.064
2044	69.359
2045	69.647
2046	69.93
2047	70.21
2048	70.488
2049	70.764
2050	71.04
2051	71.314
2052	71.585
2053	71.853
2054	72.118
2055	72.38
2056	72.639
2057	72.896
2058	73.151
2059	73.405
2060	73.657
2061	73.909
2062	74.159
2063	74.407
2064	74.653
2065	74.897
2066	75.138
2067	75.378
2068	75.614
2069	75.846
2070	76.073
2071	76.292
2072	76.504
2073	76.708
2074	76.903
2075	77.091
2076	77.272
2077	77.449
2078	77.622
2079	77.793
2080	77.963
2081	78.132
2082	78.3
2083	78.467
2084	78.633
2085	78.799
2086	78.964
2087	79.129
2088	79.292
2089	79.453
2090	79.614
2091	79.774
2092	79.932
2093	80.09
2094	80.247
2095	80.403
2096	80.559
2097	80.713
2098	80.868
2099	81.021