Year	Number
1950	77.614
1951	77.782
1952	77.573
1953	77.873
1954	78.752
1955	80.028
1956	80.483
1957	81.47
1958	82.764
1959	84.216
1960	85.766
1961	85.586
1962	85.781
1963	86.355
1964	87.096
1965	87.726
1966	86.801
1967	85.658
1968	84.598
1969	83.92
1970	83.62
1971	81.463
1972	80.51
1973	80.188
1974	79.713
1975	78.7
1976	77.652
1977	75.623
1978	73.194
1979	71.153
1980	69.805
1981	67.717
1982	66.713
1983	66.254
1984	65.599
1985	64.436
1986	63.749
1987	62.269
1988	60.452
1989	58.971
1990	58.105
1991	57.099
1992	56.873
1993	57.029
1994	56.93
1995	56.291
1996	56.183
1997	55.474
1998	54.45
1999	53.569
2000	53.039
2001	51.554
2002	50.32
2003	49.168
2004	47.948
2005	46.663
2006	46.037
2007	45.313
2008	44.33
2009	43.107
2010	41.816
2011	41.595
2012	41.255
2013	41.003
2014	40.994
2015	41.246
2016	41.691
2017	42.377
2018	43.22
2019	44.085
2020	44.896
2021	45.627
2022	46.333
2023	47.009
2024	47.68
2025	48.368
2026	49.098
2027	49.806
2028	50.479
2029	51.092
2030	51.628
2031	52.061
2032	52.411
2033	52.716
2034	53.029
2035	53.385
2036	53.753
2037	54.165
2038	54.589
2039	54.963
2040	55.258
2041	55.431
2042	55.535
2043	55.634
2044	55.827
2045	56.17
2046	56.621
2047	57.208
2048	57.896
2049	58.628
2050	59.367
2051	60.067
2052	60.762
2053	61.485
2054	62.267
2055	63.119
2056	63.959
2057	64.872
2058	65.802
2059	66.681
2060	67.476
2061	68.131
2062	68.717
2063	69.223
2064	69.618
2065	69.876
2066	69.89
2067	69.792
2068	69.628
2069	69.49
2070	69.461
2071	69.413
2072	69.465
2073	69.636
2074	69.912
2075	70.261
2076	70.513
2077	70.877
2078	71.314
2079	71.782
2080	72.274
2081	72.645
2082	73.044
2083	73.485
2084	73.974
2085	74.489
2086	74.851
2087	75.267
2088	75.718
2089	76.17
2090	76.62
2091	76.909
2092	77.22
2093	77.545
2094	77.88
2095	78.232
2096	78.406
2097	78.585
2098	78.779
2099	79.009
2100	79.285