Year	Number
1970	748276.9375
1971	772284.5
1972	839696.0625
1973	888764.6875
1974	935145.5
1975	985559.3125
1976	1038918.125
1977	1101358.625
1978	1153951.375
1979	1216594.875
1980	1285343.875
1981	1359531.5
1982	1437005
1983	1558044.75
1984	1664078.25
1985	1790562.125
1986	1897650.25
1987	2015310.75
1988	2106766.25
1989	2166649.75
1990	2304898.25
1991	2410931.5
1992	2497826.25
1993	2580352.25
1994	2675476.75
1995	2772916.5
1996	2878517.5
1997	2973427
1998	3053871.25
1999	3138047
2000	3256702.25
2001	3292194.5
2002	3500086.25
2003	3695375.75
2004	3777604
2005	4079259
2006	4387977
2007	4736872.5
2008	5045253.5
2009	5296907
2010	5548120
2011	5724899
2012	5737611
2013	5862070
2014	6028249.5
2015	6211510.5
2016	6593815.5
2017	6830495
2018	7334368
2019	7827308
2020	8184243.5
2021	8289934.5
2022	8387281