Year	Total
1970	264600
1971	637200
1972	2548800
1973	4077900
1974	3667500
1975	4171500
1976	4301100
1977	4545900
1978	4608900
1979	6106500
1980	4653000
1981	2835000
1982	3015000
1983	3339000
1984	4140000
1985	4680000
1986	5040000
1987	4500000
1988	4950000
1989	6120000
1990	5580000
1991	5886000
1992	6093000
1993	5724000
1994	5751000
1995	5706000
1996	5778000
1997	5913000
1998	5724000
1999	4680000
2000	5292000
2001	5562000
2002	5310000
2003	4950000
2004	7254000
2005	10170000
2006	11876000
2007	13752000
2008	14310000
2009	14310000
2010	15133000
2011	7069500
2012	9965600
2013	10456000
2014	10170000
2015	10620000
2016	9080800