Year	Number
1950	93.913
1951	94.436
1952	93.961
1953	93.377
1954	92.948
1955	92.546
1956	92.169
1957	92.145
1958	92.03
1959	91.451
1960	90.326
1961	90.302
1962	89.48
1963	88.256
1964	87.166
1965	86.438
1966	86.657
1967	87.073
1968	87.571
1969	87.923
1970	88.023
1971	88.723
1972	89.125
1973	89.304
1974	89.369
1975	89.375
1976	90.007
1977	90.462
1978	90.77
1979	90.961
1980	91.055
1981	91.671
1982	92.132
1983	92.431
1984	92.574
1985	92.571
1986	93.464
1987	94.17
1988	94.641
1989	94.751
1990	94.391
1991	97.059
1992	99.493
1993	101.679
1994	103.691
1995	105.534
1996	103.124
1997	100.592
1998	97.971
1999	95.31
2000	92.722
2001	89.319
2002	86.178
2003	83.361
2004	80.913
2005	78.841
2006	78.924
2007	79.138
2008	79.512
2009	80.055
2010	80.703
2011	81.399
2012	82.085
2013	82.681
2014	83.079
2015	83.206
2016	82.435
2017	81.521
2018	80.422
2019	79.109
2020	77.6
2021	76.101
2022	74.413
2023	72.636
2024	70.903
2025	69.285
2026	67.843
2027	66.511
2028	65.273
2029	64.095
2030	62.962
2031	62.012
2032	61.109
2033	60.259
2034	59.475
2035	58.759
2036	58.205
2037	57.69
2038	57.221
2039	56.801
2040	56.428
2041	56.171
2042	55.928
2043	55.702
2044	55.497
2045	55.312
2046	55.197
2047	55.083
2048	54.96
2049	54.817
2050	54.651
2051	54.508
2052	54.346
2053	54.15
2054	53.904
2055	53.604
2056	53.313
2057	52.977
2058	52.616
2059	52.25
2060	51.895
2061	51.595
2062	51.297
2063	51.025
2064	50.808
2065	50.663
2066	50.624
2067	50.635
2068	50.694
2069	50.796
2070	50.935
2071	51.152
2072	51.389
2073	51.635
2074	51.873
2075	52.093
2076	52.319
2077	52.523
2078	52.706
2079	52.872
2080	53.025
2081	53.188
2082	53.332
2083	53.461
2084	53.58
2085	53.695
2086	53.815
2087	53.927
2088	54.04
2089	54.161
2090	54.3
2091	54.448
2092	54.605
2093	54.779
2094	54.978
2095	55.205
2096	55.454
2097	55.725
2098	56.019
2099	56.335
2100	56.672