Year	Number
1950	99.621
1951	99.914
1952	100.461
1953	101.069
1954	101.72
1955	102.459
1956	102.737
1957	102.974
1958	103.332
1959	103.871
1960	104.519
1961	104.103
1962	103.992
1963	104.025
1964	103.97
1965	103.7
1966	102.778
1967	101.722
1968	100.618
1969	99.535
1970	98.46
1971	96.98
1972	95.392
1973	93.836
1974	92.482
1975	91.391
1976	89.719
1977	88.579
1978	87.771
1979	87.04
1980	86.287
1981	85.692
1982	84.941
1983	84.189
1984	83.63
1985	83.315
1986	83.257
1987	83.244
1988	83.243
1989	83.17
1990	82.965
1991	82.763
1992	82.45
1993	81.975
1994	81.298
1995	80.412
1996	79.484
1997	78.41
1998	77.203
1999	75.865
2000	74.408
2001	73.106
2002	71.594
2003	69.981
2004	68.417
2005	66.975
2006	65.581
2007	64.459
2008	63.483
2009	62.481
2010	61.392
2011	60.443
2012	59.348
2013	58.238
2014	57.304
2015	56.628
2016	56.044
2017	55.712
2018	55.54
2019	55.378
2020	55.151
2021	54.961
2022	54.69
2023	54.375
2024	54.08
2025	53.835
2026	53.562
2027	53.324
2028	53.099
2029	52.854
2030	52.573
2031	52.246
2032	51.904
2033	51.539
2034	51.15
2035	50.743
2036	50.33
2037	49.905
2038	49.496
2039	49.138
2040	48.854
2041	48.645
2042	48.503
2043	48.436
2044	48.448
2045	48.543
2046	48.725
2047	48.984
2048	49.311
2049	49.689
2050	50.109
2051	50.567
2052	51.06
2053	51.582
2054	52.126
2055	52.686
2056	53.229
2057	53.776
2058	54.333
2059	54.909
2060	55.507
2061	56.076
2062	56.668
2063	57.256
2064	57.806
2065	58.3
2066	58.679
2067	58.996
2068	59.28
2069	59.57
2070	59.891
2071	60.174
2072	60.483
2073	60.81
2074	61.14
2075	61.462
2076	61.726
2077	61.992
2078	62.268
2079	62.57
2080	62.906
2081	63.226
2082	63.591
2083	63.991
2084	64.412
2085	64.846
2086	65.247
2087	65.671
2088	66.118
2089	66.582
2090	67.053
2091	67.473
2092	67.917
2093	68.378
2094	68.846
2095	69.321
2096	69.726
2097	70.146
2098	70.582
2099	71.036
2100	71.505