Year	Number
1950	50.404
1951	50.554
1952	50.538
1953	50.639
1954	50.835
1955	51.002
1956	50.929
1957	50.975
1958	50.989
1959	50.846
1960	50.513
1961	50.247
1962	49.797
1963	49.25
1964	48.753
1965	48.379
1966	48.176
1967	48.041
1968	47.981
1969	47.988
1970	48.064
1971	48.3
1972	48.562
1973	48.865
1974	49.221
1975	49.623
1976	50.218
1977	50.826
1978	51.347
1979	51.623
1980	51.579
1981	51.382
1982	50.813
1983	50.085
1984	49.502
1985	49.225
1986	49.208
1987	49.544
1988	50.022
1989	50.337
1990	50.329
1991	50.578
1992	50.432
1993	50.022
1994	49.589
1995	49.265
1996	48.945
1997	48.741
1998	48.551
1999	48.198
2000	47.613
2001	47.169
2002	46.567
2003	45.926
2004	45.4
2005	45.079
2006	45.023
2007	45.155
2008	45.491
2009	46.006
2010	46.676
2011	47.706
2012	48.738
2013	49.779
2014	50.847
2015	51.91
2016	52.918
2017	53.982
2018	55.023
2019	55.9
2020	56.56
2021	57.376
2022	57.919
2023	58.248
2024	58.48
2025	58.674
2026	58.945
2027	59.185
2028	59.399
2029	59.57
2030	59.697
2031	59.983
2032	60.254
2033	60.53
2034	60.85
2035	61.247
2036	61.933
2037	62.697
2038	63.527
2039	64.392
2040	65.259
2041	66.382
2042	67.517
2043	68.649
2044	69.754
2045	70.814
2046	72.024
2047	73.157
2048	74.246
2049	75.345
2050	76.473
2051	77.729
2052	79.029
2053	80.249
2054	81.204
2055	81.772
2056	82.077
2057	82.015
2058	81.634
2059	81.029
2060	80.26
2061	79.441
2062	78.493
2063	77.457
2064	76.376
2065	75.279
2066	74.328
2067	73.412
2068	72.58
2069	71.895
2070	71.393
2071	71.255
2072	71.352
2073	71.599
2074	71.861
2075	72.054
2076	72.358
2077	72.618
2078	72.865
2079	73.139
2080	73.443
2081	73.867
2082	74.367
2083	74.883
2084	75.348
2085	75.736
2086	76.105
2087	76.437
2088	76.721
2089	76.949
2090	77.112
2091	77.119
2092	77.084
2093	77.009
2094	76.911
2095	76.802
2096	76.552
2097	76.315
2098	76.118
2099	75.982
2100	75.908