Year	Number
1950	75.843
1951	75.348
1952	74.846
1953	74.213
1954	73.598
1955	73.161
1956	73.949
1957	74.609
1958	75.274
1959	76.018
1960	76.845
1961	78.466
1962	79.931
1963	81.273
1964	82.486
1965	83.538
1966	84.741
1967	85.776
1968	86.562
1969	86.995
1970	87.048
1971	87.352
1972	87.195
1973	86.688
1974	85.985
1975	85.168
1976	84.583
1977	83.845
1978	82.961
1979	81.916
1980	80.722
1981	79.705
1982	78.555
1983	77.291
1984	75.92
1985	74.446
1986	73.208
1987	71.789
1988	70.27
1989	68.749
1990	67.276
1991	65.92
1992	64.663
1993	63.444
1994	62.17
1995	60.808
1996	59.655
1997	58.388
1998	57.078
1999	55.848
2000	54.788
2001	54.382
2002	54.053
2003	53.766
2004	53.474
2005	53.155
2006	52.455
2007	51.914
2008	51.52
2009	51.266
2010	51.102
2011	50.563
2012	50.184
2013	49.856
2014	49.458
2015	48.956
2016	48.83
2017	48.433
2018	47.932
2019	47.55
2020	47.378
2021	47.189
2022	47.26
2023	47.459
2024	47.58
2025	47.535
2026	47.557
2027	47.42
2028	47.191
2029	46.995
2030	46.9
2031	46.937
2032	47.032
2033	47.177
2034	47.345
2035	47.52
2036	47.779
2037	48.036
2038	48.29
2039	48.542
2040	48.792
2041	49.096
2042	49.368
2043	49.624
2044	49.887
2045	50.168
2046	50.531
2047	50.893
2048	51.224
2049	51.472
2050	51.615
2051	51.746
2052	51.767
2053	51.712
2054	51.632
2055	51.559
2056	51.589
2057	51.603
2058	51.615
2059	51.645
2060	51.704
2061	51.901
2062	52.112
2063	52.333
2064	52.555
2065	52.773
2066	53.112
2067	53.439
2068	53.744
2069	54.008
2070	54.223
2071	54.504
2072	54.716
2073	54.903
2074	55.128
2075	55.424
2076	55.882
2077	56.399
2078	56.94
2079	57.45
2080	57.899
2081	58.38
2082	58.793
2083	59.152
2084	59.48
2085	59.79
2086	60.145
2087	60.466
2088	60.758
2089	61.026
2090	61.274
2091	61.574
2092	61.851
2093	62.112
2094	62.362
2095	62.604
2096	62.916
2097	63.222
2098	63.523
2099	63.819
2100	64.113