Year	Number
1950	58.483
1951	59.362
1952	59.443
1953	59.198
1954	58.886
1955	58.54
1956	59.004
1957	58.783
1958	58.545
1959	58.429
1960	58.306
1961	63.573
1962	68.007
1963	71.772
1964	75.004
1965	77.726
1966	85.163
1967	92.234
1968	98.644
1969	104.079
1970	108.371
1971	108.973
1972	108.694
1973	107.783
1974	106.788
1975	106.069
1976	106.976
1977	108.31
1978	109.411
1979	109.525
1980	108.518
1981	110.288
1982	110.251
1983	109.407
1984	108.992
1985	109.46
1986	108.658
1987	109.398
1988	110.67
1989	111.09
1990	110.118
1991	109.334
1992	107.156
1993	104.399
1994	102.121
1995	100.626
1996	99.119
1997	98.472
1998	98.241
1999	97.799
2000	96.88
2001	96.327
2002	95.165
2003	93.799
2004	92.631
2005	91.773
2006	91.059
2007	90.416
2008	89.836
2009	89.279
2010	88.711
2011	87.757
2012	86.978
2013	86.226
2014	85.328
2015	84.206
2016	83.164
2017	81.862
2018	80.41
2019	78.987
2020	77.669
2021	76.385
2022	75.242
2023	74.189
2024	73.143
2025	72.082
2026	71.152
2027	70.201
2028	69.27
2029	68.401
2030	67.611
2031	66.938
2032	66.34
2033	65.792
2034	65.254
2035	64.708
2036	64.188
2037	63.651
2038	63.151
2039	62.76
2040	62.513
2041	62.414
2042	62.425
2043	62.463
2044	62.406
2045	62.198
2046	61.871
2047	61.408
2048	60.888
2049	60.412
2050	60.033
2051	59.739
2052	59.514
2053	59.312
2054	59.064
2055	58.737
2056	58.364
2057	57.934
2058	57.48
2059	57.039
2060	56.637
2061	56.292
2062	55.968
2063	55.679
2064	55.439
2065	55.261
2066	55.172
2067	55.129
2068	55.124
2069	55.139
2070	55.162
2071	55.224
2072	55.287
2073	55.35
2074	55.421
2075	55.504
2076	55.619
2077	55.73
2078	55.837
2079	55.93
2080	56.002
2081	56.062
2082	56.094
2083	56.105
2084	56.105
2085	56.105
2086	56.109
2087	56.104
2088	56.097
2089	56.089
2090	56.086
2091	56.1
2092	56.108
2093	56.118
2094	56.134
2095	56.164
2096	56.223
2097	56.288
2098	56.362
2099	56.445
2100	56.535