Year	Number
1950	75.358
1951	75.291
1952	75.036
1953	75.306
1954	76.241
1955	77.612
1956	79.711
1957	82.777
1958	86.636
1959	91.047
1960	95.748
1961	98.284
1962	100.593
1963	102.64
1964	104.678
1965	106.987
1966	108.706
1967	110.941
1968	113.891
1969	117.325
1970	120.757
1971	117.836
1972	115.036
1973	112.176
1974	109.25
1975	106.467
1976	104.274
1977	102.154
1978	100.037
1979	97.893
1980	95.779
1981	92.715
1982	90.15
1983	88.101
1984	86.625
1985	85.696
1986	82.826
1987	80.871
1988	79.621
1989	78.908
1990	78.606
1991	77.313
1992	76.41
1993	75.714
1994	75.074
1995	74.387
1996	73.206
1997	71.707
1998	69.975
1999	68.106
2000	66.166
2001	64.028
2002	61.89
2003	59.743
2004	57.608
2005	55.542
2006	54.202
2007	53.079
2008	52.133
2009	51.396
2010	50.894
2011	50.028
2012	49.302
2013	48.641
2014	47.983
2015	47.325
2016	46.892
2017	46.469
2018	46.073
2019	45.74
2020	45.487
2021	45.438
2022	45.461
2023	45.531
2024	45.651
2025	45.827
2026	46.174
2027	46.573
2028	46.993
2029	47.414
2030	47.827
2031	48.335
2032	48.835
2033	49.304
2034	49.735
2035	50.136
2036	50.591
2037	51.018
2038	51.415
2039	51.79
2040	52.156
2041	52.588
2042	53.01
2043	53.421
2044	53.853
2045	54.332
2046	54.923
2047	55.571
2048	56.232
2049	56.857
2050	57.418
2051	57.979
2052	58.473
2053	58.952
2054	59.516
2055	60.228
2056	61.125
2057	62.186
2058	63.323
2059	64.435
2060	65.456
2061	66.446
2062	67.366
2063	68.216
2064	69.024
2065	69.81
2066	70.585
2067	71.338
2068	72.062
2069	72.748
2070	73.405
2071	74.014
2072	74.601
2073	75.177
2074	75.749
2075	76.32
2076	76.839
2077	77.388
2078	77.941
2079	78.472
2080	79.004
2081	79.471
2082	79.942
2083	80.425
2084	80.925
2085	81.426
2086	81.809
2087	82.239
2088	82.664
2089	83.047
2090	83.407
2091	83.674
2092	83.943
2093	84.217
2094	84.504
2095	84.794
2096	84.948
2097	85.128
2098	85.32
2099	85.504
2100	85.7