Year	Number
1950	78.206
1951	79.198
1952	79.558
1953	79.76
1954	79.907
1955	79.927
1956	80.142
1957	80.393
1958	80.542
1959	80.464
1960	80.116
1961	80.47
1962	80.43
1963	80.14
1964	79.814
1965	79.548
1966	79.993
1967	80.294
1968	80.444
1969	80.41
1970	80.191
1971	80.45
1972	80.526
1973	80.352
1974	79.649
1975	78.135
1976	77.933
1977	76.415
1978	73.912
1979	71.373
1980	69.702
1981	67.869
1982	68.007
1983	69.38
1984	70.671
1985	71.109
1986	72.871
1987	72.646
1988	71.256
1989	70.126
1990	70.032
1991	70.88
1992	73.104
1993	76.072
1994	78.697
1995	80.402
1996	86.546
1997	92.364
1998	97.898
1999	103.553
2000	109.605
2001	109.46
2002	108.675
2003	107.404
2004	105.656
2005	103.399
2006	97.682
2007	92.568
2008	88.233
2009	85.117
2010	83.643
2011	84.249
2012	86.481
2013	89.344
2014	91.495
2015	92.275
2016	93.541
2017	92.773
2018	91.04
2019	89.779
2020	89.554
2021	88.707
2022	89.074
2023	89.938
2024	90.222
2025	89.446
2026	88.261
2027	86.273
2028	83.82
2029	81.464
2030	79.472
2031	77.671
2032	76.111
2033	74.762
2034	73.532
2035	72.371
2036	71.317
2037	70.395
2038	69.545
2039	68.69
2040	67.792
2041	66.88
2042	65.929
2043	65.02
2044	64.227
2045	63.582
2046	63.056
2047	62.63
2048	62.261
2049	61.889
2050	61.472
2051	60.944
2052	60.394
2053	59.823
2054	59.242
2055	58.659
2056	58.023
2057	57.403
2058	56.792
2059	56.189
2060	55.599
2061	54.993
2062	54.402
2063	53.856
2064	53.39
2065	53.021
2066	52.711
2067	52.512
2068	52.372
2069	52.217
2070	52.007
2071	51.719
2072	51.37
2073	51.055
2074	50.907
2075	50.989
2076	51.212
2077	51.635
2078	52.184
2079	52.745
2080	53.248
2081	53.649
2082	54
2083	54.318
2084	54.629
2085	54.947
2086	55.18
2087	55.413
2088	55.644
2089	55.874
2090	56.103
2091	56.248
2092	56.395
2093	56.558
2094	56.748
2095	56.97
2096	57.113
2097	57.298
2098	57.527
2099	57.804
2100	58.133