Year	Number
1950	102.22
1951	101.334
1952	99.862
1953	98.336
1954	96.858
1955	95.376
1956	94.512
1957	93.808
1958	93.093
1959	92.244
1960	91.186
1961	92.072
1962	92.673
1963	93.17
1964	93.851
1965	94.93
1966	96.238
1967	96.927
1968	97.233
1969	97.177
1970	96.633
1971	98.197
1972	99.57
1973	100.606
1974	101.132
1975	101.115
1976	104.793
1977	107.075
1978	108.245
1979	108.833
1980	109.194
1981	107.75
1982	106.728
1983	105.76
1984	104.442
1985	102.763
1986	102.388
1987	101.325
1988	100
1989	98.881
1990	98.051
1991	92.785
1992	88.547
1993	84.852
1994	81.235
1995	77.58
1996	77.267
1997	76.575
1998	75.645
1999	74.711
2000	73.876
2001	73.008
2002	72.112
2003	71.229
2004	70.424
2005	69.805
2006	69.313
2007	68.892
2008	68.553
2009	68.227
2010	67.83
2011	67.328
2012	66.839
2013	66.298
2014	65.627
2015	64.775
2016	64.111
2017	63.286
2018	62.357
2019	61.421
2020	60.524
2021	59.604
2022	58.805
2023	58.068
2024	57.312
2025	56.521
2026	55.771
2027	54.969
2028	54.175
2029	53.47
2030	52.902
2031	52.46
2032	52.109
2033	51.854
2034	51.686
2035	51.598
2036	51.606
2037	51.678
2038	51.8
2039	51.952
2040	52.121
2041	52.287
2042	52.449
2043	52.62
2044	52.817
2045	53.048
2046	53.271
2047	53.506
2048	53.733
2049	53.921
2050	54.053
2051	54.08
2052	54.055
2053	53.993
2054	53.913
2055	53.832
2056	53.708
2057	53.581
2058	53.464
2059	53.373
2060	53.321
2061	53.278
2062	53.274
2063	53.311
2064	53.39
2065	53.508
2066	53.64
2067	53.815
2068	54.034
2069	54.299
2070	54.611
2071	54.932
2072	55.291
2073	55.703
2074	56.18
2075	56.724
2076	57.273
2077	57.891
2078	58.553
2079	59.221
2080	59.874
2081	60.433
2082	60.982
2083	61.523
2084	62.062
2085	62.6
2086	63.023
2087	63.45
2088	63.886
2089	64.334
2090	64.798
2091	65.148
2092	65.527
2093	65.939
2094	66.387
2095	66.873
2096	67.239
2097	67.656
2098	68.125
2099	68.642
2100	69.205