Year	Number
1950	49.895
1951	50.531
1952	50.627
1953	50.863
1954	51.37
1955	51.993
1956	52.094
1957	52.601
1958	53.166
1959	53.519
1960	53.61
1961	54.168
1962	54.378
1963	54.417
1964	54.572
1965	54.966
1966	55.894
1967	56.818
1968	57.732
1969	58.556
1970	59.216
1971	59.803
1972	60.248
1973	60.486
1974	60.45
1975	60.124
1976	59.731
1977	59.115
1978	58.281
1979	57.279
1980	56.177
1981	55.285
1982	54.345
1983	53.454
1984	52.716
1985	52.189
1986	52.222
1987	52.349
1988	52.567
1989	52.847
1990	53.146
1991	53.495
1992	53.867
1993	54.224
1994	54.491
1995	54.618
1996	54.611
1997	54.473
1998	54.228
1999	53.914
2000	53.555
2001	53.189
2002	52.746
2003	52.276
2004	51.839
2005	51.478
2006	51.288
2007	51.172
2008	51.118
2009	51.124
2010	51.218
2011	51.991
2012	52.746
2013	53.52
2014	54.323
2015	55.122
2016	55.703
2017	56.346
2018	56.993
2019	57.559
2020	58.025
2021	58.513
2022	58.886
2023	59.209
2024	59.595
2025	60.104
2026	60.693
2027	61.375
2028	62.123
2029	62.877
2030	63.602
2031	64.248
2032	64.89
2033	65.495
2034	66.029
2035	66.481
2036	66.792
2037	67.02
2038	67.205
2039	67.377
2040	67.545
2041	67.63
2042	67.734
2043	67.861
2044	68.039
2045	68.312
2046	68.593
2047	68.956
2048	69.402
2049	69.909
2050	70.448
2051	70.854
2052	71.292
2053	71.751
2054	72.206
2055	72.64
2056	72.909
2057	73.184
2058	73.441
2059	73.653
2060	73.811
2061	73.803
2062	73.784
2063	73.744
2064	73.671
2065	73.572
2066	73.304
2067	73.025
2068	72.787
2069	72.668
2070	72.716
2071	72.728
2072	72.906
2073	73.226
2074	73.631
2075	74.072
2076	74.339
2077	74.668
2078	75.047
2079	75.47
2080	75.936
2081	76.231
2082	76.58
2083	76.976
2084	77.408
2085	77.867
2086	78.122
2087	78.42
2088	78.75
2089	79.1
2090	79.465
2091	79.603
2092	79.768
2093	79.961
2094	80.189
2095	80.461
2096	80.502
2097	80.58
2098	80.713
2099	80.922
2100	81.213