Year	Number
1950	57.489
1951	56.588
1952	55.509
1953	54.368
1954	53.295
1955	52.366
1956	51.304
1957	50.424
1958	49.739
1959	49.222
1960	48.847
1961	49.111
1962	49.287
1963	49.418
1964	49.552
1965	49.711
1966	49.915
1967	50.119
1968	50.306
1969	50.475
1970	50.643
1971	50.887
1972	51.108
1973	51.252
1974	51.242
1975	51.061
1976	51.332
1977	51.308
1978	51.058
1979	50.697
1980	50.301
1981	49.915
1982	49.644
1983	49.473
1984	49.356
1985	49.288
1986	49.615
1987	49.865
1988	50.009
1989	50.027
1990	49.88
1991	50.801
1992	51.517
1993	52.004
1994	52.277
1995	52.348
1996	51.836
1997	51.223
1998	50.548
1999	49.809
2000	49.01
2001	48.4
2002	47.921
2003	47.528
2004	47.187
2005	46.891
2006	47.14
2007	47.307
2008	47.48
2009	47.764
2010	48.207
2011	48.915
2012	49.654
2013	50.427
2014	51.259
2015	52.184
2016	52.698
2017	53.472
2018	54.334
2019	55.064
2020	55.555
2021	56.379
2022	56.854
2023	57.117
2024	57.412
2025	57.861
2026	58.515
2027	59.33
2028	60.19
2029	60.867
2030	61.231
2031	61.512
2032	61.543
2033	61.41
2034	61.27
2035	61.224
2036	61.45
2037	61.789
2038	62.178
2039	62.523
2040	62.786
2041	63.178
2042	63.49
2043	63.782
2044	64.12
2045	64.532
2046	65.108
2047	65.738
2048	66.437
2049	67.229
2050	68.129
2051	69.262
2052	70.503
2053	71.777
2054	72.966
2055	73.978
2056	74.944
2057	75.789
2058	76.387
2059	76.578
2060	76.291
2061	75.645
2062	74.557
2063	73.234
2064	71.958
2065	70.883
2066	70.014
2067	69.355
2068	68.88
2069	68.56
2070	68.387
2071	68.451
2072	68.717
2073	69.098
2074	69.453
2075	69.69
2076	69.866
2077	69.925
2078	69.938
2079	70.006
2080	70.171
2081	70.46
2082	70.871
2083	71.357
2084	71.835
2085	72.253
2086	72.672
2087	73.105
2088	73.494
2089	73.81
2090	74.062
2091	74.207
2092	74.266
2093	74.278
2094	74.287
2095	74.294
2096	74.083
2097	73.904
2098	73.768
2099	73.66
2100	73.569