Year	Number
1973	266680.25
1974	272338
1975	286963.875
1976	301417.125
1977	315544.0625
1978	340521.4375
1979	365815.0625
1980	392249.25
1981	425222.75
1982	484200.90625
1983	514125.21875
1984	562805.8125
1985	575902
1986	598980.5
1987	634142.75
1988	670470.625
1989	672293.3125
1990	690911.625
1991	716701.375
1992	732062.6875
1993	754374.25
1994	779212.25
1995	793312.1875
1996	821960.1875
1997	831924.0625
1998	863436.75
1999	895373.375
2000	949613.75
2001	1024970.75
2002	1072927
2003	1151133.5
2004	1191874
2005	1247363
2006	1374917.5
2007	1480530.125
2008	1668487.75
2009	1832007.375
2010	1971340.375
2011	2297551
2012	2245921
2013	2647738.25
2014	2726262
2015	2919052.25
2016	2920115.75
2017	3074717
2018	3133393.5
2019	3315763.5
2020	3474790.25
2021	3582845.25
2022	3718649.5