Year	Number
1950	88.991
1951	89.335
1952	89.603
1953	89.899
1954	90.152
1955	90.296
1956	90.733
1957	91.093
1958	91.382
1959	91.62
1960	91.763
1961	88.346
1962	85.44
1963	83.164
1964	81.339
1965	79.628
1966	79.485
1967	78.638
1968	77.476
1969	76.379
1970	75.527
1971	73.378
1972	71.291
1973	69.428
1974	67.801
1975	66.354
1976	65.98
1977	65.832
1978	65.695
1979	65.473
1980	65.173
1981	64.71
1982	64.215
1983	63.595
1984	62.839
1985	61.978
1986	61.196
1987	60.42
1988	59.681
1989	59.029
1990	58.478
1991	57.795
1992	57.192
1993	56.664
1994	56.151
1995	55.62
1996	55.313
1997	54.901
1998	54.409
1999	53.94
2000	53.56
2001	53.316
2002	53.104
2003	52.892
2004	52.624
2005	52.286
2006	51.972
2007	51.624
2008	51.2
2009	50.733
2010	50.301
2011	50.207
2012	50.162
2013	50.13
2014	50.08
2015	50.024
2016	50.157
2017	50.287
2018	50.415
2019	50.562
2020	50.759
2021	51.064
2022	51.435
2023	51.832
2024	52.223
2025	52.612
2026	53.067
2027	53.525
2028	53.976
2029	54.428
2030	54.903
2031	55.423
2032	55.968
2033	56.513
2034	57.045
2035	57.575
2036	58.108
2037	58.641
2038	59.181
2039	59.75
2040	60.371
2041	61.037
2042	61.777
2043	62.549
2044	63.322
2045	64.105
2046	64.902
2047	65.72
2048	66.55
2049	67.398
2050	68.28
2051	69.141
2052	70.043
2053	70.976
2054	71.954
2055	73.01
2056	74.072
2057	75.227
2058	76.434
2059	77.656
2060	78.885
2061	80.025
2062	81.189
2063	82.329
2064	83.41
2065	84.434
2066	85.269
2067	86.049
2068	86.769
2069	87.447
2070	88.11
2071	88.59
2072	89.081
2073	89.558
2074	90.023
2075	90.509
2076	90.852
2077	91.25
2078	91.669
2079	92.084
2080	92.504
2081	92.723
2082	92.967
2083	93.225
2084	93.497
2085	93.788
2086	93.878
2087	94.033
2088	94.207
2089	94.373
2090	94.554
2091	94.548
2092	94.592
2093	94.662
2094	94.75
2095	94.874
2096	94.819
2097	94.814
2098	94.832
2099	94.875
2100	94.967