Year	Number
1950	75.029
1951	76.307
1952	77.543
1953	78.605
1954	79.408
1955	79.943
1956	81.071
1957	81.797
1958	82.261
1959	82.614
1960	82.92
1961	83.688
1962	84.346
1963	84.887
1964	85.272
1965	85.491
1966	86.19
1967	86.65
1968	86.956
1969	87.243
1970	87.588
1971	88.389
1972	89.25
1973	90.109
1974	90.846
1975	91.392
1976	93.674
1977	95.656
1978	97.379
1979	98.914
1980	100.259
1981	101.134
1982	101.715
1983	102.007
1984	102.05
1985	101.906
1986	99.031
1987	96.266
1988	93.639
1989	91.118
1990	88.689
1991	87.736
1992	86.651
1993	85.49
1994	84.314
1995	83.142
1996	82.332
1997	81.377
1998	80.314
1999	79.141
2000	77.835
2001	77.716
2002	77.5
2003	77.132
2004	76.584
2005	75.873
2006	74.897
2007	73.859
2008	72.803
2009	71.826
2010	71.006
2011	69.969
2012	69.128
2013	68.448
2014	67.846
2015	67.267
2016	67.093
2017	66.759
2018	66.363
2019	66.022
2020	65.763
2021	65.405
2022	65.175
2023	64.959
2024	64.604
2025	64.049
2026	63.465
2027	62.711
2028	61.841
2029	60.954
2030	60.106
2031	59.355
2032	58.621
2033	57.914
2034	57.233
2035	56.582
2036	56.034
2037	55.511
2038	55.017
2039	54.554
2040	54.123
2041	53.78
2042	53.458
2043	53.155
2044	52.867
2045	52.591
2046	52.373
2047	52.156
2048	51.951
2049	51.771
2050	51.623
2051	51.536
2052	51.463
2053	51.406
2054	51.373
2055	51.366
2056	51.401
2057	51.452
2058	51.508
2059	51.552
2060	51.578
2061	51.605
2062	51.608
2063	51.591
2064	51.557
2065	51.51
2066	51.456
2067	51.387
2068	51.314
2069	51.247
2070	51.194
2071	51.16
2072	51.129
2073	51.125
2074	51.178
2075	51.306
2076	51.508
2077	51.768
2078	52.072
2079	52.396
2080	52.725
2081	53.061
2082	53.394
2083	53.726
2084	54.057
2085	54.388
2086	54.714
2087	55.03
2088	55.339
2089	55.644
2090	55.945
2091	56.232
2092	56.512
2093	56.79
2094	57.07
2095	57.355
2096	57.623
2097	57.892
2098	58.166
2099	58.451
2100	58.752