Year	Number
1950	67.573
1951	67.061
1952	66
1953	65.066
1954	64.255
1955	63.342
1956	61.695
1957	60.427
1958	59.184
1959	57.711
1960	55.97
1961	54.162
1962	52.215
1963	50.264
1964	48.538
1965	47.155
1966	46.398
1967	45.763
1968	45.329
1969	45.157
1970	45.251
1971	45.425
1972	45.915
1973	46.571
1974	47.153
1975	47.529
1976	48.192
1977	48.437
1978	48.415
1979	48.365
1980	48.384
1981	47.921
1982	47.719
1983	47.589
1984	47.269
1985	46.675
1986	46.191
1987	45.428
1988	44.548
1989	43.822
1990	43.395
1991	43.072
1992	43.017
1993	43.177
1994	43.441
1995	43.753
1996	44.188
1997	44.713
1998	45.302
1999	45.944
2000	46.638
2001	47.364
2002	48.108
2003	48.899
2004	49.765
2005	50.717
2006	51.684
2007	52.758
2008	53.96
2009	55.31
2010	56.819
2011	58.244
2012	59.789
2013	61.4
2014	62.984
2015	64.467
2016	65.726
2017	66.87
2018	67.902
2019	68.827
2020	69.65
2021	70.201
2022	70.661
2023	71.066
2024	71.47
2025	71.914
2026	72.235
2027	72.643
2028	73.138
2029	73.711
2030	74.37
2031	74.935
2032	75.599
2033	76.406
2034	77.423
2035	78.686
2036	79.95
2037	81.489
2038	83.219
2039	84.956
2040	86.547
2041	87.753
2042	88.87
2043	89.877
2044	90.807
2045	91.721
2046	92.398
2047	93.057
2048	93.714
2049	94.394
2050	95.109
2051	95.503
2052	95.938
2053	96.408
2054	96.88
2055	97.319
2056	97.282
2057	97.24
2058	97.209
2059	97.23
2060	97.342
2061	97.081
2062	96.937
2063	96.918
2064	96.971
2065	97.028
2066	96.647
2067	96.381
2068	96.155
2069	95.945
2070	95.804
2071	95.38
2072	95.019
2073	94.776
2074	94.689
2075	94.745
2076	94.447
2077	94.286
2078	94.254
2079	94.333
2080	94.512
2081	94.332
2082	94.274
2083	94.311
2084	94.43
2085	94.639
2086	94.477
2087	94.388
2088	94.407
2089	94.548
2090	94.792
2091	94.635
2092	94.6
2093	94.662
2094	94.807
2095	95.045
2096	94.921
2097	94.88
2098	94.941
2099	95.127
2100	95.444