Year	Number
1950	68.057
1951	69.059
1952	70.493
1953	71.47
1954	71.812
1955	71.727
1956	73.308
1957	73.895
1958	74.075
1959	74.345
1960	74.857
1961	75.687
1962	76.832
1963	78.02
1964	78.787
1965	78.932
1966	79.498
1967	79.456
1968	79.01
1969	78.477
1970	78.016
1971	78.302
1972	78.459
1973	78.55
1974	78.596
1975	78.601
1976	79.252
1977	79.799
1978	80.249
1979	80.584
1980	80.796
1981	81.62
1982	82.213
1983	82.63
1984	82.929
1985	83.135
1986	83.878
1987	84.446
1988	84.85
1989	85.092
1990	85.175
1991	85.061
1992	84.701
1993	84.142
1994	83.433
1995	82.612
1996	82.5
1997	82.317
1998	82.058
1999	81.681
2000	81.138
2001	80.773
2002	80.406
2003	80.025
2004	79.634
2005	79.198
2006	77.872
2007	76.643
2008	75.467
2009	74.228
2010	72.843
2011	70.604
2012	68.217
2013	65.837
2014	63.679
2015	61.842
2016	59.999
2017	58.45
2018	57.095
2019	55.773
2020	54.421
2021	53.36
2022	52.175
2023	51.003
2024	50.019
2025	49.278
2026	48.608
2027	48.152
2028	47.83
2029	47.509
2030	47.115
2031	46.658
2032	46.154
2033	45.619
2034	45.099
2035	44.619
2036	44.149
2037	43.719
2038	43.33
2039	42.98
2040	42.673
2041	42.427
2042	42.225
2043	42.079
2044	41.998
2045	41.982
2046	42.022
2047	42.122
2048	42.29
2049	42.531
2050	42.846
2051	43.192
2052	43.607
2053	44.097
2054	44.665
2055	45.31
2056	45.96
2057	46.681
2058	47.491
2059	48.419
2060	49.482
2061	50.597
2062	51.837
2063	53.186
2064	54.611
2065	56.087
2066	57.501
2067	58.951
2068	60.429
2069	61.919
2070	63.404
2071	64.722
2072	66.022
2073	67.29
2074	68.495
2075	69.618
2076	70.469
2077	71.224
2078	71.935
2079	72.683
2080	73.518
2081	74.246
2082	75.062
2083	75.954
2084	76.894
2085	77.86
2086	78.643
2087	79.466
2088	80.325
2089	81.202
2090	82.069
2091	82.727
2092	83.399
2093	84.072
2094	84.719
2095	85.321
2096	85.689
2097	86.052
2098	86.413
2099	86.774
2100	87.132