Year	Years
1950	40.999
1951	41.146
1952	41.439
1953	41.736
1954	42.036
1955	42.339
1956	42.644
1957	42.952
1958	43.261
1959	43.569
1960	43.875
1961	44.176
1962	44.467
1963	44.746
1964	45.007
1965	45.243
1966	45.445
1967	45.614
1968	45.752
1969	45.866
1970	45.959
1971	46.032
1972	46.098
1973	46.178
1974	46.294
1975	46.498
1976	46.847
1977	47.355
1978	48.003
1979	48.752
1980	49.594
1981	50.523
1982	51.447
1983	52.225
1984	52.699
1985	52.483
1986	51.142
1987	48.579
1988	44.934
1989	40.517
1990	36.005
1991	32.237
1992	29.869
1993	29.284
1994	30.536
1995	33.334
1996	37.093
1997	41.013
1998	44.465
1999	47.199
2000	49.175
2001	50.577
2002	51.814
2003	53.194
2004	54.778
2005	56.56
2006	58.464
2007	60.337
2008	62.056
2009	63.575
2010	64.869
2011	65.939
2012	66.832
2013	67.593
2014	68.241
2015	68.789
2016	69.248
2017	69.629
2018	69.946
2019	70.218
2020	70.462
2021	70.692
2022	70.91
2023	71.123
2024	71.339
2025	71.564
2026	71.798
2027	72.036
2028	72.275
2029	72.512
2030	72.749
2031	72.985
2032	73.219
2033	73.45
2034	73.675
2035	73.895
2036	74.106
2037	74.309
2038	74.502
2039	74.687
2040	74.863
2041	75.031
2042	75.192
2043	75.349
2044	75.503
2045	75.658
2046	75.816
2047	75.977
2048	76.142
2049	76.311
2050	76.486
2051	76.665
2052	76.846
2053	77.028
2054	77.21
2055	77.391
2056	77.572
2057	77.751
2058	77.929
2059	78.106
2060	78.282
2061	78.456
2062	78.628
2063	78.8
2064	78.968
2065	79.134
2066	79.296
2067	79.453
2068	79.604
2069	79.75
2070	79.891
2071	80.027
2072	80.158
2073	80.286
2074	80.411
2075	80.534
2076	80.655
2077	80.773
2078	80.891
2079	81.007
2080	81.123
2081	81.239
2082	81.354
2083	81.468
2084	81.583
2085	81.697
2086	81.811
2087	81.924
2088	82.037
2089	82.15
2090	82.262
2091	82.374
2092	82.485
2093	82.595
2094	82.705
2095	82.813
2096	82.921
2097	83.028
2098	83.134
2099	83.239