Year	Number
1950	83.094
1951	82.456
1952	81.415
1953	80.292
1954	79.268
1955	78.394
1956	78.437
1957	78.492
1958	78.55
1959	78.622
1960	78.759
1961	79.727
1962	80.375
1963	80.896
1964	81.478
1965	82.204
1966	83.513
1967	84.656
1968	85.662
1969	86.511
1970	87.222
1971	88.356
1972	89.121
1973	89.612
1974	89.929
1975	90.151
1976	91.102
1977	91.758
1978	92.159
1979	92.31
1980	92.238
1981	92.802
1982	92.921
1983	92.715
1984	92.303
1985	91.759
1986	91.86
1987	91.773
1988	91.49
1989	90.994
1990	90.312
1991	89.961
1992	89.36
1993	88.591
1994	87.757
1995	86.927
1996	86.961
1997	86.925
1998	86.8
1999	86.547
2000	86.154
2001	86.958
2002	87.569
2003	88.001
2004	88.3
2005	88.496
2006	88.534
2007	88.452
2008	88.231
2009	87.863
2010	87.377
2011	86.742
2012	86.02
2013	85.22
2014	84.365
2015	83.49
2016	83.034
2017	82.469
2018	81.847
2019	81.232
2020	80.654
2021	80.319
2022	79.969
2023	79.579
2024	79.115
2025	78.569
2026	78.141
2027	77.622
2028	77.017
2029	76.342
2030	75.62
2031	75.034
2032	74.383
2033	73.681
2034	72.948
2035	72.204
2036	71.621
2037	71.007
2038	70.373
2039	69.727
2040	69.082
2041	68.595
2042	68.081
2043	67.547
2044	66.996
2045	66.437
2046	65.99
2047	65.517
2048	65.024
2049	64.52
2050	64.014
2051	63.617
2052	63.204
2053	62.781
2054	62.356
2055	61.938
2056	61.638
2057	61.322
2058	60.999
2059	60.682
2060	60.377
2061	60.171
2062	59.957
2063	59.732
2064	59.497
2065	59.25
2066	59.065
2067	58.861
2068	58.639
2069	58.399
2070	58.143
2071	57.951
2072	57.73
2073	57.495
2074	57.264
2075	57.047
2076	56.901
2077	56.759
2078	56.621
2079	56.486
2080	56.354
2081	56.285
2082	56.205
2083	56.12
2084	56.04
2085	55.97
2086	55.94
2087	55.912
2088	55.885
2089	55.856
2090	55.826
2091	55.827
2092	55.816
2093	55.8
2094	55.785
2095	55.778
2096	55.791
2097	55.802
2098	55.814
2099	55.829
2100	55.847