Year	Total
1970	197000
1971	195000
1972	401000
1973	1751000
1974	3801000
1975	4984000
1976	6574000
1977	7544000
1978	7394000
1979	7746000
1980	7775000
1981	7528000
1982	7519000
1983	7842000
1984	7935000
1985	7736000
1986	7756000
1987	7738000
1988	8040000
1989	7879000
1990	8033000
1991	8154000
1992	8777000
1993	9293000
1994	9352000
1995	10585000
1996	10493000
1997	10501000
1998	9694000
1999	10105000
2000	10168000
2001	10257000
2002	10313000
2003	11119000
2004	11009000
2005	10809000
2006	11313000
2007	11029000
2008	10938000
2009	10273000
2010	11054000
2011	11519000
2012	11309000
2013	10986000
2014	10667000
2015	10460000
2016	10091000