Year	Number
1950	57.429
1951	58.209
1952	59.351
1953	60.55
1954	61.582
1955	62.445
1956	64.645
1957	66.3
1958	67.793
1959	69.579
1960	71.893
1961	74.746
1962	78.28
1963	82.082
1964	85.426
1965	87.918
1966	91.19
1967	93.077
1968	94.103
1969	95.053
1970	96.275
1971	97.491
1972	99.087
1973	100.58
1974	101.235
1975	100.761
1976	100.48
1977	99.027
1978	96.903
1979	94.786
1980	92.991
1981	91.625
1982	90.493
1983	89.441
1984	88.244
1985	86.837
1986	85.961
1987	84.899
1988	83.657
1989	82.195
1990	80.481
1991	79.882
1992	78.634
1993	77.01
1994	75.327
1995	73.683
1996	71.281
1997	69.286
1998	67.391
1999	65.178
2000	62.503
2001	59.762
2002	56.678
2003	53.525
2004	50.723
2005	48.489
2006	46.834
2007	45.715
2008	45.043
2009	44.646
2010	44.438
2011	44.894
2012	45.415
2013	46.045
2014	46.805
2015	47.649
2016	48.669
2017	49.59
2018	50.418
2019	51.157
2020	51.783
2021	51.994
2022	52.247
2023	52.422
2024	52.393
2025	52.131
2026	51.914
2027	51.479
2028	50.904
2029	50.328
2030	49.83
2031	49.471
2032	49.18
2033	48.977
2034	48.853
2035	48.802
2036	48.916
2037	49.116
2038	49.391
2039	49.723
2040	50.1
2041	50.592
2042	51.129
2043	51.713
2044	52.34
2045	53.003
2046	53.736
2047	54.483
2048	55.273
2049	56.154
2050	57.144
2051	58.268
2052	59.479
2053	60.701
2054	61.816
2055	62.736
2056	63.485
2057	64.059
2058	64.449
2059	64.665
2060	64.726
2061	64.617
2062	64.393
2063	64.075
2064	63.678
2065	63.22
2066	62.695
2067	62.153
2068	61.647
2069	61.256
2070	61.031
2071	60.937
2072	61
2073	61.233
2074	61.648
2075	62.247
2076	62.932
2077	63.79
2078	64.789
2079	65.835
2080	66.84
2081	67.683
2082	68.512
2083	69.28
2084	69.976
2085	70.634
2086	71.149
2087	71.596
2088	72.003
2089	72.398
2090	72.783
2091	73.009
2092	73.209
2093	73.391
2094	73.577
2095	73.783
2096	73.874
2097	73.985
2098	74.142
2099	74.35
2100	74.588