Year	Total
1971	132800
1972	129300
1973	257400
1974	432300
1975	447200
1976	431000
1977	495800
1978	666600
1979	916600
1980	1302000
1981	1263000
1982	1513000
1983	1584000
1984	1709000
1985	1775000
1986	1806000
1987	1878000
1988	1293000
1989	1115000
1990	1537000
1991	1395000
1992	1667000
1993	2052000
1994	2353000
1995	2307000
1996	1970000
1997	2409000
1998	2273000
1999	1839000
2000	2474000
2001	3183000
2002	3083000
2003	2907000
2004	2617000
2005	2924000
2006	3263000
2007	2611000
2008	2615000
2009	2912000
2010	2888000