Year	Number
1950	39.781
1951	43.196
1952	46.148
1953	48.992
1954	51.705
1955	54.173
1956	56.932
1957	60.097
1958	63.801
1959	67.752
1960	71.412
1961	71.322
1962	70.601
1963	69.991
1964	69.721
1965	69.576
1966	69.284
1967	68.716
1968	68.513
1969	68.661
1970	68.807
1971	67.261
1972	65.78
1973	64.766
1974	64.239
1975	63.986
1976	62.894
1977	61.778
1978	60.778
1979	59.987
1980	59.405
1981	58.134
1982	57.086
1983	56.281
1984	55.644
1985	55.124
1986	54.196
1987	53.279
1988	52.421
1989	51.678
1990	51.15
1991	51.872
1992	52.735
1993	53.679
1994	54.554
1995	55.215
1996	55.853
1997	56.178
1998	56.223
1999	56.086
2000	55.861
2001	56.092
2002	56.277
2003	56.389
2004	56.329
2005	56.051
2006	55.674
2007	55.071
2008	54.369
2009	53.735
2010	53.299
2011	52.785
2012	52.445
2013	52.251
2014	52.11
2015	51.979
2016	51.954
2017	51.937
2018	51.958
2019	52.055
2020	52.256
2021	52.545
2022	52.888
2023	53.309
2024	53.829
2025	54.449
2026	55.102
2027	55.849
2028	56.642
2029	57.412
2030	58.113
2031	58.681
2032	59.18
2033	59.618
2034	60.018
2035	60.402
2036	60.663
2037	60.895
2038	61.096
2039	61.257
2040	61.36
2041	61.292
2042	61.187
2043	61.065
2044	60.948
2045	60.859
2046	60.693
2047	60.574
2048	60.509
2049	60.528
2050	60.645
2051	60.736
2052	60.922
2053	61.214
2054	61.612
2055	62.089
2056	62.515
2057	63.048
2058	63.657
2059	64.317
2060	65.01
2061	65.607
2062	66.245
2063	66.926
2064	67.649
2065	68.407
2066	69.018
2067	69.676
2068	70.356
2069	71.035
2070	71.705
2071	72.17
2072	72.63
2073	73.108
2074	73.623
2075	74.194
2076	74.564
2077	74.989
2078	75.479
2079	76.038
2080	76.667
2081	77.093
2082	77.605
2083	78.199
2084	78.853
2085	79.559
2086	80.037
2087	80.589
2088	81.201
2089	81.864
2090	82.569
2091	83.022
2092	83.528
2093	84.089
2094	84.7
2095	85.354
2096	85.721
2097	86.143
2098	86.612
2099	87.126
2100	87.681