Year	Number
1950	85.18
1951	87.124
1952	88.586
1953	90.102
1954	91.844
1955	93.72
1956	96.111
1957	98.58
1958	100.792
1959	102.343
1960	103.022
1961	105.694
1962	107.392
1963	108.319
1964	108.862
1965	109.233
1966	108.254
1967	107.048
1968	105.658
1969	104.061
1970	102.3
1971	101.807
1972	101.089
1973	100.286
1974	99.573
1975	99.037
1976	99.55
1977	100.036
1978	100.518
1979	100.992
1980	101.459
1981	102.968
1982	104.185
1983	105.202
1984	106.201
1985	107.298
1986	108.552
1987	109.88
1988	110.921
1989	110.691
1990	108.258
1991	106.763
1992	102.783
1993	96.645
1994	90.074
1995	85.125
1996	84.625
1997	86.065
1998	89.054
1999	91.913
2000	93.216
2001	91.874
2002	89.299
2003	86.057
2004	83.311
2005	81.71
2006	80.933
2007	81.088
2008	81.789
2009	82.299
2010	82.211
2011	82.133
2012	81.405
2013	80.265
2014	79.096
2015	78.069
2016	76.792
2017	75.739
2018	74.735
2019	73.527
2020	72.037
2021	70.683
2022	69.038
2023	67.287
2024	65.689
2025	64.351
2026	63.192
2027	62.262
2028	61.466
2029	60.65
2030	59.75
2031	58.91
2032	58.006
2033	57.095
2034	56.259
2035	55.53
2036	54.93
2037	54.396
2038	53.915
2039	53.464
2040	53.026
2041	52.624
2042	52.226
2043	51.851
2044	51.522
2045	51.254
2046	51.036
2047	50.86
2048	50.722
2049	50.617
2050	50.545
2051	50.519
2052	50.526
2053	50.527
2054	50.466
2055	50.316
2056	50.074
2057	49.758
2058	49.42
2059	49.136
2060	48.951
2061	48.838
2062	48.803
2063	48.84
2064	48.936
2065	49.082
2066	49.239
2067	49.436
2068	49.682
2069	49.992
2070	50.373
2071	50.782
2072	51.246
2073	51.746
2074	52.248
2075	52.732
2076	53.151
2077	53.547
2078	53.935
2079	54.33
2080	54.742
2081	55.12
2082	55.523
2083	55.936
2084	56.351
2085	56.772
2086	57.145
2087	57.516
2088	57.905
2089	58.332
2090	58.802
2091	59.221
2092	59.681
2093	60.181
2094	60.719
2095	61.297
2096	61.836
2097	62.413
2098	63.031
2099	63.686
2100	64.37