Year	Number
1950	48.564
1951	49.722
1952	50.916
1953	52.146
1954	53.199
1955	53.887
1956	54.386
1957	54.64
1958	54.616
1959	54.366
1960	53.96
1961	53.437
1962	52.85
1963	52.207
1964	51.523
1965	50.828
1966	50.655
1967	50.339
1968	50.015
1969	49.885
1970	50.068
1971	50.382
1972	51.059
1973	51.994
1974	52.994
1975	53.948
1976	55.444
1977	56.777
1978	57.855
1979	58.517
1980	58.631
1981	58.406
1982	57.503
1983	56.248
1984	55.099
1985	54.3
1986	53.533
1987	53.305
1988	53.246
1989	52.873
1990	51.991
1991	51.514
1992	50.464
1993	49.104
1994	47.797
1995	46.694
1996	45.921
1997	45.233
1998	44.605
1999	43.945
2000	43.22
2001	42.379
2002	41.692
2003	41.126
2004	40.657
2005	40.312
2006	40.427
2007	40.58
2008	40.855
2009	41.359
2010	42.121
2011	43.398
2012	44.794
2013	46.311
2014	47.91
2015	49.517
2016	50.896
2017	52.351
2018	53.802
2019	55.018
2020	55.909
2021	56.726
2022	57.16
2023	57.336
2024	57.464
2025	57.656
2026	57.836
2027	58.089
2028	58.376
2029	58.619
2030	58.791
2031	58.909
2032	58.988
2033	59.11
2034	59.4
2035	59.933
2036	60.681
2037	61.663
2038	62.868
2039	64.254
2040	65.787
2041	67.527
2042	69.437
2043	71.425
2044	73.332
2045	75.04
2046	76.516
2047	77.765
2048	78.84
2049	79.849
2050	80.864
2051	81.75
2052	82.619
2053	83.446
2054	84.187
2055	84.807
2056	85.161
2057	85.441
2058	85.576
2059	85.478
2060	85.113
2061	84.321
2062	83.297
2063	82.165
2064	81.076
2065	80.108
2066	79.072
2067	78.194
2068	77.498
2069	76.992
2070	76.676
2071	76.479
2072	76.569
2073	76.834
2074	77.137
2075	77.423
2076	77.631
2077	77.817
2078	78.036
2079	78.35
2080	78.755
2081	79.042
2082	79.425
2083	79.867
2084	80.313
2085	80.73
2086	80.962
2087	81.218
2088	81.457
2089	81.656
2090	81.833
2091	81.778
2092	81.687
2093	81.602
2094	81.559
2095	81.559
2096	81.247
2097	81.009
2098	80.858
2099	80.779
2100	80.761