Year	Number
1950	57.221
1951	58.307
1952	58.461
1953	58.765
1954	59.437
1955	60.251
1956	60.14
1957	60.646
1958	61.176
1959	61.201
1960	60.55
1961	59.974
1962	58.764
1963	57.164
1964	55.608
1965	54.309
1966	53.476
1967	52.749
1968	52.126
1969	51.552
1970	51.005
1971	50.433
1972	49.872
1973	49.337
1974	48.852
1975	48.427
1976	48.141
1977	48.055
1978	48.036
1979	47.927
1980	47.677
1981	47.666
1982	47.377
1983	47.001
1984	46.787
1985	46.832
1986	46.944
1987	47.276
1988	47.741
1989	48.203
1990	48.598
1991	48.922
1992	49.276
1993	49.591
1994	49.782
1995	49.805
1996	50.015
1997	49.933
1998	49.691
1999	49.485
2000	49.412
2001	49.299
2002	49.416
2003	49.657
2004	49.85
2005	49.927
2006	50.078
2007	50.067
2008	50.01
2009	50.156
2010	50.692
2011	51.665
2012	53.045
2013	54.758
2014	56.571
2015	58.267
2016	59.653
2017	60.902
2018	62.007
2019	63.004
2020	63.927
2021	64.78
2022	65.545
2023	66.236
2024	66.885
2025	67.517
2026	68.104
2027	68.654
2028	69.19
2029	69.726
2030	70.261
2031	70.671
2032	71.134
2033	71.552
2034	71.802
2035	71.84
2036	71.556
2037	71.049
2038	70.494
2039	70.09
2040	69.908
2041	69.796
2042	69.966
2043	70.295
2044	70.634
2045	70.938
2046	71.225
2047	71.52
2048	71.837
2049	72.177
2050	72.515
2051	72.701
2052	72.887
2053	73.095
2054	73.368
2055	73.732
2056	74.053
2057	74.496
2058	75.01
2059	75.49
2060	75.865
2061	76.009
2062	76.115
2063	76.165
2064	76.186
2065	76.23
2066	76.115
2067	75.996
2068	75.956
2069	76.051
2070	76.272
2071	76.339
2072	76.58
2073	76.93
2074	77.315
2075	77.713
2076	77.931
2077	78.202
2078	78.519
2079	78.879
2080	79.28
2081	79.459
2082	79.674
2083	79.95
2084	80.296
2085	80.691
2086	80.844
2087	81.092
2088	81.388
2089	81.699
2090	82.033
2091	82.143
2092	82.281
2093	82.469
2094	82.726
2095	83.049
2096	83.091
2097	83.204
2098	83.383
2099	83.621
2100	83.916