Year	Number
1950	63.079
1951	63.437
1952	63.171
1953	63.203
1954	63.955
1955	65.489
1956	67.878
1957	70.82
1958	74.124
1959	77.534
1960	80.887
1961	84.624
1962	88.219
1963	91.504
1964	94.248
1965	96.273
1966	98.344
1967	99.335
1968	99.474
1969	99.156
1970	98.63
1971	97.33
1972	96.218
1973	95.145
1974	93.796
1975	92.038
1976	90.71
1977	88.981
1978	87.094
1979	85.344
1980	83.835
1981	82.643
1982	81.692
1983	80.974
1984	80.395
1985	79.884
1986	79.695
1987	79.547
1988	79.457
1989	79.423
1990	79.408
1991	79.672
1992	79.624
1993	79.294
1994	78.628
1995	77.543
1996	76.317
1997	74.602
1998	72.548
1999	70.407
2000	68.352
2001	66.224
2002	64.586
2003	63.124
2004	61.429
2005	59.367
2006	57.734
2007	55.566
2008	53.264
2009	51.352
2010	50.043
2011	48.972
2012	48.457
2013	48.299
2014	48.162
2015	47.883
2016	47.818
2017	47.591
2018	47.274
2019	47.006
2020	46.848
2021	46.816
2022	46.838
2023	46.874
2024	46.859
2025	46.762
2026	46.7
2027	46.566
2028	46.359
2029	46.087
2030	45.761
2031	45.466
2032	45.126
2033	44.758
2034	44.391
2035	44.047
2036	43.838
2037	43.638
2038	43.463
2039	43.324
2040	43.23
2041	43.288
2042	43.376
2043	43.496
2044	43.649
2045	43.832
2046	44.169
2047	44.506
2048	44.865
2049	45.274
2050	45.748
2051	46.394
2052	47.067
2053	47.749
2054	48.418
2055	49.056
2056	49.799
2057	50.504
2058	51.121
2059	51.58
2060	51.847
2061	52.063
2062	52.083
2063	51.979
2064	51.853
2065	51.767
2066	51.861
2067	51.973
2068	52.09
2069	52.185
2070	52.248
2071	52.473
2072	52.657
2073	52.823
2074	52.998
2075	53.2
2076	53.633
2077	54.065
2078	54.492
2079	54.899
2080	55.275
2081	55.832
2082	56.342
2083	56.804
2084	57.205
2085	57.537
2086	58.012
2087	58.419
2088	58.749
2089	58.996
2090	59.162
2091	59.444
2092	59.637
2093	59.757
2094	59.823
2095	59.847
2096	59.986
2097	60.082
2098	60.146
2099	60.183
2100	60.2