Year	Number
1950	84.69
1951	85.4
1952	86.035
1953	86.606
1954	87.125
1955	87.599
1956	88.35
1957	88.981
1958	89.514
1959	89.98
1960	90.39
1961	91.053
1962	91.583
1963	91.99
1964	92.263
1965	92.387
1966	92.638
1967	92.681
1968	92.537
1969	92.237
1970	91.793
1971	91.354
1972	90.78
1973	90.064
1974	89.18
1975	88.124
1976	87.166
1977	85.995
1978	84.686
1979	83.324
1980	81.951
1981	80.563
1982	79.192
1983	77.823
1984	76.429
1985	75.014
1986	73.649
1987	72.298
1988	70.973
1989	69.683
1990	68.438
1991	67.314
1992	66.168
1993	65.052
1994	64.038
1995	63.161
1996	62.334
1997	61.684
1998	61.134
1999	60.565
2000	59.923
2001	59.46
2002	58.824
2003	58.117
2004	57.485
2005	56.989
2006	56.447
2007	56.093
2008	55.835
2009	55.536
2010	55.147
2011	54.869
2012	54.479
2013	54.041
2014	53.656
2015	53.367
2016	53.163
2017	53.014
2018	52.91
2019	52.825
2020	52.747
2021	52.685
2022	52.646
2023	52.624
2024	52.612
2025	52.613
2026	52.669
2027	52.728
2028	52.8
2029	52.902
2030	53.044
2031	53.217
2032	53.42
2033	53.656
2034	53.924
2035	54.225
2036	54.522
2037	54.846
2038	55.193
2039	55.553
2040	55.922
2041	56.25
2042	56.582
2043	56.92
2044	57.267
2045	57.623
2046	57.918
2047	58.218
2048	58.529
2049	58.858
2050	59.21
2051	59.5
2052	59.814
2053	60.15
2054	60.499
2055	60.859
2056	61.126
2057	61.404
2058	61.707
2059	62.056
2060	62.461
2061	62.802
2062	63.203
2063	63.649
2064	64.111
2065	64.569
2066	64.891
2067	65.22
2068	65.566
2069	65.945
2070	66.372
2071	66.693
2072	67.064
2073	67.485
2074	67.952
2075	68.462
2076	68.848
2077	69.285
2078	69.769
2079	70.292
2080	70.843
2081	71.234
2082	71.663
2083	72.126
2084	72.623
2085	73.157
2086	73.515
2087	73.912
2088	74.357
2089	74.848
2090	75.373
2091	75.696
2092	76.073
2093	76.492
2094	76.944
2095	77.433
2096	77.728
2097	78.062
2098	78.439
2099	78.868
2100	79.348