Year	Number
1950	67.333
1951	68.293
1952	70.999
1953	73.278
1954	74.395
1955	74.671
1956	78.942
1957	81.281
1958	83.016
1959	85.49
1960	89.34
1961	92.152
1962	96.815
1963	102.222
1964	106.397
1965	108.431
1966	111.396
1967	112.034
1968	111.394
1969	110.818
1970	110.645
1971	110.691
1972	111.72
1973	113.063
1974	113.835
1975	113.675
1976	114.367
1977	113.828
1978	112.349
1979	110.617
1980	109.086
1981	105.92
1982	103.392
1983	101.467
1984	99.992
1985	98.876
1986	99.06
1987	99.393
1988	99.827
1989	100.42
1990	101.237
1991	101.399
1992	101.492
1993	101.415
1994	101.043
1995	100.304
1996	99.777
1997	99.011
1998	97.957
1999	96.5
2000	94.545
2001	91.446
2002	88.021
2003	84.354
2004	80.645
2005	77.022
2006	73.1
2007	69.529
2008	66.216
2009	63.094
2010	60.216
2011	58.287
2012	56.352
2013	54.577
2014	53.133
2015	52.048
2016	51.187
2017	50.613
2018	50.218
2019	49.841
2020	49.399
2021	48.956
2022	48.459
2023	47.934
2024	47.448
2025	47.031
2026	46.694
2027	46.41
2028	46.149
2029	45.862
2030	45.532
2031	45.193
2032	44.831
2033	44.463
2034	44.109
2035	43.788
2036	43.501
2037	43.244
2038	43.034
2039	42.886
2040	42.814
2041	42.793
2042	42.834
2043	42.964
2044	43.214
2045	43.594
2046	44.063
2047	44.646
2048	45.34
2049	46.13
2050	47.01
2051	47.939
2052	48.945
2053	50.018
2054	51.145
2055	52.309
2056	53.447
2057	54.611
2058	55.778
2059	56.915
2060	58.001
2061	58.949
2062	59.842
2063	60.677
2064	61.448
2065	62.156
2066	62.673
2067	63.118
2068	63.532
2069	63.981
2070	64.504
2071	64.952
2072	65.467
2073	66.055
2074	66.709
2075	67.419
2076	68.04
2077	68.73
2078	69.478
2079	70.268
2080	71.081
2081	71.788
2082	72.536
2083	73.312
2084	74.095
2085	74.864
2086	75.479
2087	76.105
2088	76.734
2089	77.355
2090	77.965
2091	78.402
2092	78.848
2093	79.303
2094	79.773
2095	80.265
2096	80.558
2097	80.877
2098	81.228
2099	81.622
2100	82.054