Year	Number
1950	83.013
1951	82.885
1952	81.754
1953	80.092
1954	78.541
1955	77.546
1956	76.9
1957	76.688
1958	77.219
1959	78.573
1960	80.665
1961	80.711
1962	81.664
1963	83.231
1964	84.975
1965	86.562
1966	85.527
1967	85.131
1968	84.871
1969	84.324
1970	83.308
1971	81.149
1972	78.683
1973	76.128
1974	73.673
1975	71.334
1976	68.927
1977	66.5
1978	64.256
1979	62.337
1980	60.724
1981	58.559
1982	56.875
1983	55.48
1984	54.056
1985	52.439
1986	50.964
1987	49.085
1988	47.092
1989	45.385
1990	44.116
1991	42.774
1992	42.042
1993	41.655
1994	41.227
1995	40.608
1996	40.632
1997	40.238
1998	39.701
1999	39.398
2000	39.463
2001	39.312
2002	39.332
2003	39.281
2004	38.955
2005	38.384
2006	38.479
2007	38.581
2008	38.471
2009	38.11
2010	37.606
2011	37.409
2012	37.144
2013	36.955
2014	36.965
2015	37.211
2016	37.587
2017	38.176
2018	38.981
2019	39.983
2020	41.175
2021	42.463
2022	43.954
2023	45.609
2024	47.37
2025	49.198
2026	50.959
2027	52.787
2028	54.668
2029	56.588
2030	58.533
2031	60.398
2032	62.244
2033	64.09
2034	65.967
2035	67.893
2036	69.628
2037	71.398
2038	73.172
2039	74.895
2040	76.527
2041	77.749
2042	78.895
2043	79.988
2044	81.086
2045	82.243
2046	83.174
2047	84.167
2048	85.212
2049	86.245
2050	87.205
2051	87.78
2052	88.303
2053	88.848
2054	89.542
2055	90.485
2056	91.345
2057	92.478
2058	93.826
2059	95.273
2060	96.73
2061	97.846
2062	99.007
2063	100.133
2064	101.094
2065	101.795
2066	101.865
2067	101.685
2068	101.306
2069	100.852
2070	100.429
2071	99.639
2072	98.889
2073	98.226
2074	97.663
2075	97.184
2076	96.371
2077	95.733
2078	95.208
2079	94.768
2080	94.451
2081	93.871
2082	93.396
2083	93.104
2084	93.019
2085	93.082
2086	92.84
2087	92.792
2088	92.897
2089	93.119
2090	93.473
2091	93.63
2092	93.954
2093	94.409
2094	94.964
2095	95.612
2096	96.017
2097	96.434
2098	96.847
2099	97.303
2100	97.833