Year	Number
1950	79.414
1951	80.68
1952	82.092
1953	83.028
1954	83.398
1955	83.39
1956	85.488
1957	86.642
1958	87.3
1959	87.86
1960	88.468
1961	90.101
1962	91.719
1963	93.135
1964	94
1965	94.177
1966	95.405
1967	95.836
1968	95.687
1969	95.293
1970	94.874
1971	95.6
1972	96.014
1973	96.212
1974	96.249
1975	96.173
1976	97.078
1977	97.676
1978	98.044
1979	98.261
1980	98.395
1981	99.419
1982	100.065
1983	100.423
1984	100.535
1985	100.377
1986	101.175
1987	101.653
1988	101.812
1989	101.695
1990	101.395
1991	101.921
1992	102.034
1993	101.851
1994	101.464
1995	100.901
1996	101.356
1997	101.517
1998	101.437
1999	101.208
2000	100.93
2001	101.5
2002	101.796
2003	101.912
2004	101.903
2005	101.781
2006	102.293
2007	102.564
2008	102.609
2009	102.429
2010	102.036
2011	102.107
2012	101.837
2013	101.315
2014	100.638
2015	99.856
2016	99.462
2017	98.919
2018	98.221
2019	97.356
2020	96.343
2021	95.727
2022	94.9
2023	93.93
2024	92.893
2025	91.833
2026	91.132
2027	90.336
2028	89.466
2029	88.531
2030	87.543
2031	86.833
2032	86.019
2033	85.127
2034	84.179
2035	83.189
2036	82.42
2037	81.565
2038	80.647
2039	79.687
2040	78.7
2041	77.89
2042	77.025
2043	76.119
2044	75.18
2045	74.218
2046	73.41
2047	72.556
2048	71.675
2049	70.783
2050	69.895
2051	69.142
2052	68.374
2053	67.599
2054	66.823
2055	66.053
2056	65.399
2057	64.733
2058	64.066
2059	63.408
2060	62.766
2061	62.22
2062	61.674
2063	61.134
2064	60.605
2065	60.092
2066	59.658
2067	59.226
2068	58.8
2069	58.385
2070	57.986
2071	57.653
2072	57.321
2073	56.994
2074	56.673
2075	56.361
2076	56.096
2077	55.829
2078	55.565
2079	55.31
2080	55.067
2081	54.867
2082	54.668
2083	54.475
2084	54.294
2085	54.13
2086	54
2087	53.876
2088	53.763
2089	53.662
2090	53.575
2091	53.523
2092	53.472
2093	53.43
2094	53.4
2095	53.386
2096	53.397
2097	53.413
2098	53.439
2099	53.474
2100	53.517