Year	Number
1950	46.921
1951	47.637
1952	47.971
1953	48.542
1954	49.493
1955	50.693
1956	51.429
1957	52.64
1958	53.982
1959	55.122
1960	55.924
1961	56.891
1962	57.417
1963	57.643
1964	57.818
1965	58.049
1966	58.361
1967	58.602
1968	58.774
1969	58.82
1970	58.69
1971	58.592
1972	58.353
1973	57.943
1974	57.354
1975	56.609
1976	56.068
1977	55.403
1978	54.611
1979	53.67
1980	52.581
1981	51.548
1982	50.384
1983	49.252
1984	48.359
1985	47.818
1986	47.806
1987	48.084
1988	48.552
1989	49.056
1990	49.496
1991	49.959
1992	50.384
1993	50.783
1994	51.158
1995	51.499
1996	51.854
1997	52.121
1998	52.321
1999	52.486
2000	52.626
2001	52.531
2002	52.457
2003	52.374
2004	52.219
2005	51.97
2006	51.88
2007	51.673
2008	51.438
2009	51.323
2010	51.419
2011	51.783
2012	52.282
2013	52.908
2014	53.592
2015	54.248
2016	54.942
2017	55.652
2018	56.378
2019	57.08
2020	57.75
2021	58.494
2022	59.213
2023	59.924
2024	60.66
2025	61.433
2026	62.198
2027	63.016
2028	63.864
2029	64.698
2030	65.496
2031	66.191
2032	66.875
2033	67.535
2034	68.173
2035	68.797
2036	69.274
2037	69.73
2038	70.195
2039	70.682
2040	71.178
2041	71.509
2042	71.88
2043	72.276
2044	72.687
2045	73.123
2046	73.436
2047	73.79
2048	74.185
2049	74.605
2050	75.024
2051	75.239
2052	75.48
2053	75.741
2054	76.016
2055	76.297
2056	76.404
2057	76.563
2058	76.736
2059	76.872
2060	76.942
2061	76.776
2062	76.594
2063	76.412
2064	76.251
2065	76.128
2066	75.848
2067	75.635
2068	75.505
2069	75.479
2070	75.568
2071	75.536
2072	75.644
2073	75.875
2074	76.191
2075	76.563
2076	76.741
2077	77.003
2078	77.335
2079	77.721
2080	78.152
2081	78.369
2082	78.645
2083	78.979
2084	79.355
2085	79.755
2086	79.906
2087	80.114
2088	80.358
2089	80.626
2090	80.923
2091	80.965
2092	81.045
2093	81.177
2094	81.375
2095	81.635
2096	81.618
2097	81.681
2098	81.823
2099	82.038
2100	82.321