Year	Number
1950	71.085
1951	72.604
1952	74.292
1953	75.784
1954	77.023
1955	78.144
1956	80.765
1957	82.789
1958	84.537
1959	86.201
1960	87.778
1961	89.402
1962	91.049
1963	92.456
1964	93.248
1965	93.289
1966	93.663
1967	93.264
1968	92.339
1969	91.234
1970	90.133
1971	89.591
1972	88.943
1973	88.256
1974	87.58
1975	86.968
1976	86.709
1977	86.529
1978	86.455
1979	86.558
1980	86.926
1981	88.276
1982	89.708
1983	91.169
1984	92.527
1985	93.642
1986	95.326
1987	96.361
1988	96.683
1989	96.249
1990	95.028
1991	93.933
1992	92.372
1993	90.336
1994	87.868
1995	85.045
1996	80.845
1997	76.632
1998	72.484
1999	68.404
2000	64.358
2001	60.172
2002	56.002
2003	51.918
2004	48.127
2005	44.841
2006	43.083
2007	41.686
2008	40.687
2009	40.036
2010	39.648
2011	39.475
2012	39.451
2013	39.577
2014	39.838
2015	40.195
2016	40.605
2017	41.062
2018	41.495
2019	41.82
2020	41.992
2021	41.931
2022	41.759
2023	41.473
2024	41.094
2025	40.655
2026	40.153
2027	39.613
2028	39.067
2029	38.564
2030	38.143
2031	37.802
2032	37.56
2033	37.422
2034	37.384
2035	37.448
2036	37.613
2037	37.878
2038	38.283
2039	38.87
2040	39.667
2041	40.631
2042	41.761
2043	43.096
2044	44.683
2045	46.545
2046	48.596
2047	50.893
2048	53.386
2049	55.982
2050	58.607
2051	61.118
2052	63.621
2053	66.033
2054	68.235
2055	70.139
2056	71.546
2057	72.605
2058	73.339
2059	73.807
2060	74.058
2061	73.914
2062	73.565
2063	73.08
2064	72.559
2065	72.082
2066	71.55
2067	71.069
2068	70.693
2069	70.493
2070	70.508
2071	70.692
2072	71.088
2073	71.691
2074	72.455
2075	73.331
2076	74.34
2077	75.493
2078	76.731
2079	77.953
2080	79.079
2081	80.161
2082	81.19
2083	82.112
2084	82.879
2085	83.467
2086	83.86
2087	84.103
2088	84.199
2089	84.171
2090	84.042
2091	83.669
2092	83.22
2093	82.728
2094	82.244
2095	81.803
2096	81.182
2097	80.634
2098	80.187
2099	79.856
2100	79.642