Year	Number
1950	86.465
1951	85.473
1952	83.514
1953	81.592
1954	80.048
1955	78.763
1956	78.375
1957	78.452
1958	78.564
1959	78.338
1960	77.689
1961	78.488
1962	78.458
1963	78.025
1964	77.746
1965	77.85
1966	78.491
1967	79.288
1968	80.135
1969	80.801
1970	81.179
1971	81.477
1972	81.415
1973	81.13
1974	80.777
1975	80.44
1976	81.223
1977	81.812
1978	82.244
1979	82.494
1980	82.538
1981	83.921
1982	84.881
1983	85.52
1984	86.007
1985	86.45
1986	86.986
1987	87.54
1988	87.944
1989	87.865
1990	87.073
1991	88.144
1992	88.709
1993	88.911
1994	89.133
1995	89.668
1996	87.922
1997	86.193
1998	84.416
1999	82.361
2000	79.938
2001	76.024
2002	72.03
2003	68.211
2004	64.768
2005	61.734
2006	59.629
2007	57.757
2008	56.076
2009	54.477
2010	52.894
2011	51.728
2012	50.428
2013	49.106
2014	47.911
2015	46.903
2016	45.954
2017	45.273
2018	44.749
2019	44.224
2020	43.632
2021	43.27
2022	42.778
2023	42.227
2024	41.736
2025	41.352
2026	40.977
2027	40.7
2028	40.505
2029	40.347
2030	40.206
2031	40.136
2032	40.106
2033	40.098
2034	40.096
2035	40.098
2036	40.133
2037	40.172
2038	40.253
2039	40.431
2040	40.738
2041	41.173
2042	41.725
2043	42.396
2044	43.185
2045	44.094
2046	45.113
2047	46.242
2048	47.466
2049	48.75
2050	50.066
2051	51.376
2052	52.709
2053	54.045
2054	55.371
2055	56.682
2056	57.917
2057	59.11
2058	60.275
2059	61.417
2060	62.529
2061	63.523
2062	64.49
2063	65.416
2064	66.297
2065	67.143
2066	67.864
2067	68.539
2068	69.204
2069	69.901
2070	70.646
2071	71.346
2072	72.105
2073	72.886
2074	73.627
2075	74.286
2076	74.789
2077	75.235
2078	75.65
2079	76.082
2080	76.563
2081	77.01
2082	77.521
2083	78.076
2084	78.643
2085	79.206
2086	79.659
2087	80.122
2088	80.592
2089	81.065
2090	81.53
2091	81.853
2092	82.18
2093	82.508
2094	82.832
2095	83.151
2096	83.303
2097	83.468
2098	83.65
2099	83.847
2100	84.049