Year	Total
1971	463500
1972	517600
1973	535300
1974	662700
1975	767900
1976	909500
1977	1046000
1978	1052000
1979	1224000
1980	1254000
1981	1297000
1982	1360000
1983	1553000
1984	1741000
1985	1947000
1986	2163000
1987	2652000
1988	2941000
1989	2981000
1990	3180000
1991	3830000
1992	4065000
1993	4082000
1994	4410000
1995	4424000
1996	4630000
1997	4924000
1998	4980000
1999	5211000
2000	5407000
2001	5197000
2002	5119000
2003	5205000
2004	6025000
2005	6640000
2006	7016000
2007	7142000
2008	7467000
2009	7391000
2010	6602000