Year	Number
1950	102.704
1951	100.353
1952	98.061
1953	95.91
1954	93.788
1955	91.665
1956	92.619
1957	93.395
1958	93.973
1959	94.56
1960	95.4
1961	96.141
1962	96.614
1963	97.008
1964	97.33
1965	97.517
1966	100.185
1967	102.288
1968	103.713
1969	104.332
1970	104.004
1971	102.837
1972	101.317
1973	99.402
1974	97.153
1975	94.661
1976	91.213
1977	88.403
1978	86.084
1979	83.958
1980	81.814
1981	82.157
1982	81.923
1983	81.369
1984	80.851
1985	80.554
1986	79.769
1987	78.898
1988	78.225
1989	77.976
1990	78.167
1991	78.515
1992	79.569
1993	80.761
1994	81.435
1995	81.402
1996	81.501
1997	80.71
1998	79.579
1999	78.823
2000	78.731
2001	77.749
2002	77.689
2003	78.183
2004	78.675
2005	78.848
2006	78.779
2007	78.424
2008	77.805
2009	77.073
2010	76.346
2011	76.204
2012	75.935
2013	75.542
2014	75.005
2015	74.329
2016	72.934
2017	71.487
2018	70.035
2019	68.652
2020	67.396
2021	66.353
2022	65.504
2023	64.761
2024	64.051
2025	63.367
2026	62.889
2027	62.423
2028	62.012
2029	61.743
2030	61.637
2031	61.713
2032	61.905
2033	62.2
2034	62.559
2035	62.943
2036	63.373
2037	63.828
2038	64.247
2039	64.558
2040	64.713
2041	64.715
2042	64.576
2043	64.307
2044	63.942
2045	63.508
2046	62.998
2047	62.454
2048	61.854
2049	61.151
2050	60.336
2051	59.415
2052	58.451
2053	57.503
2054	56.674
2055	56.033
2056	55.598
2057	55.351
2058	55.257
2059	55.286
2060	55.398
2061	55.624
2062	55.925
2063	56.319
2064	56.797
2065	57.362
2066	57.971
2067	58.65
2068	59.374
2069	60.112
2070	60.845
2071	61.509
2072	62.167
2073	62.788
2074	63.345
2075	63.811
2076	64.092
2077	64.309
2078	64.439
2079	64.488
2080	64.471
2081	64.288
2082	64.054
2083	63.809
2084	63.598
2085	63.438
2086	63.206
2087	63.048
2088	62.963
2089	62.957
2090	63.036
2091	63.116
2092	63.294
2093	63.578
2094	63.956
2095	64.42
2096	64.85
2097	65.368
2098	65.953
2099	66.584
2100	67.242