Year	Number
1950	82.338
1951	82.013
1952	81.189
1953	80.275
1954	79.494
1955	78.876
1956	79.092
1957	79.468
1958	79.861
1959	80.146
1960	80.297
1961	81.65
1962	82.564
1963	83.252
1964	83.998
1965	84.92
1966	86.461
1967	88.056
1968	89.551
1969	90.618
1970	91.031
1971	91.891
1972	92.371
1973	92.537
1974	92.626
1975	92.792
1976	93.18
1977	93.286
1978	93.146
1979	92.698
1980	91.934
1981	91.806
1982	91.139
1983	90.149
1984	89.091
1985	88.073
1986	87.353
1987	86.603
1988	85.757
1989	84.683
1990	83.334
1991	82.268
1992	80.968
1993	79.498
1994	77.95
1995	76.375
1996	75
1997	73.583
1998	72.139
1999	70.673
2000	69.196
2001	68.067
2002	66.879
2003	65.66
2004	64.434
2005	63.202
2006	62.291
2007	61.326
2008	60.32
2009	59.296
2010	58.263
2011	57.061
2012	55.931
2013	54.827
2014	53.686
2015	52.487
2016	51.361
2017	50.181
2018	49.018
2019	47.962
2020	47.052
2021	46.329
2022	45.71
2023	45.193
2024	44.763
2025	44.407
2026	44.144
2027	43.954
2028	43.82
2029	43.722
2030	43.646
2031	43.613
2032	43.602
2033	43.607
2034	43.615
2035	43.622
2036	43.635
2037	43.646
2038	43.681
2039	43.772
2040	43.935
2041	44.174
2042	44.474
2043	44.833
2044	45.249
2045	45.717
2046	46.225
2047	46.774
2048	47.369
2049	48.002
2050	48.661
2051	49.313
2052	49.978
2053	50.665
2054	51.377
2055	52.112
2056	52.835
2057	53.574
2058	54.338
2059	55.133
2060	55.958
2061	56.775
2062	57.615
2063	58.48
2064	59.371
2065	60.285
2066	61.179
2067	62.085
2068	63.004
2069	63.919
2070	64.808
2071	65.605
2072	66.372
2073	67.121
2074	67.867
2075	68.616
2076	69.307
2077	70
2078	70.703
2079	71.422
2080	72.157
2081	72.834
2082	73.53
2083	74.245
2084	74.967
2085	75.684
2086	76.295
2087	76.904
2088	77.515
2089	78.12
2090	78.711
2091	79.176
2092	79.635
2093	80.092
2094	80.541
2095	80.975
2096	81.283
2097	81.594
2098	81.909
2099	82.226
2100	82.542