Year	Number
1950	81.224
1951	81.979
1952	82.917
1953	83.782
1954	84.474
1955	84.986
1956	86.447
1957	87.101
1958	87.207
1959	86.957
1960	86.333
1961	84.993
1962	83.871
1963	82.782
1964	81.442
1965	79.756
1966	78.322
1967	76.355
1968	74.169
1969	72.151
1970	70.432
1971	67.937
1972	65.98
1973	64.224
1974	62.222
1975	59.825
1976	58.544
1977	56.616
1978	54.26
1979	51.951
1980	50.071
1981	48.843
1982	47.967
1983	47.487
1984	47.162
1985	46.727
1986	47.589
1987	47.987
1988	47.893
1989	47.602
1990	47.501
1991	45.948
1992	44.879
1993	44.298
1994	43.932
1995	43.534
1996	43.983
1997	44.241
1998	44.332
1999	44.377
2000	44.421
2001	44.245
2002	44.05
2003	43.775
2004	43.408
2005	42.983
2006	43.143
2007	43.478
2008	43.958
2009	44.531
2010	45.157
2011	44.991
2012	44.705
2013	44.353
2014	44.07
2015	43.952
2016	43.795
2017	43.948
2018	44.318
2019	44.738
2020	45.151
2021	45.867
2022	46.49
2023	47.151
2024	48.052
2025	49.288
2026	50.763
2027	52.534
2028	54.493
2029	56.426
2030	58.187
2031	59.766
2032	61.134
2033	62.31
2034	63.372
2035	64.357
2036	65.167
2037	65.846
2038	66.378
2039	66.755
2040	66.978
2041	67.025
2042	66.921
2043	66.675
2044	66.296
2045	65.791
2046	65.23
2047	64.599
2048	63.896
2049	63.122
2050	62.305
2051	61.552
2052	60.767
2053	60.051
2054	59.589
2055	59.446
2056	59.765
2057	60.431
2058	61.343
2059	62.355
2060	63.375
2061	64.528
2062	65.703
2063	66.888
2064	68.081
2065	69.255
2066	70.402
2067	71.498
2068	72.543
2069	73.558
2070	74.544
2071	75.439
2072	76.325
2073	77.127
2074	77.749
2075	78.14
2076	78.187
2077	78.023
2078	77.706
2079	77.36
2080	77.081
2081	76.687
2082	76.35
2083	76.088
2084	75.934
2085	75.865
2086	75.724
2087	75.715
2088	75.821
2089	75.994
2090	76.234
2091	76.483
2092	76.815
2093	77.242
2094	77.726
2095	78.243
2096	78.669
2097	79.137
2098	79.624
2099	80.09
2100	80.533