Year	Total
1971	89940
1972	99230
1973	95270
1974	86500
1975	86410
1976	81510
1977	66120
1978	77040
1979	93980
1980	120000
1981	133000
1982	128000
1983	149000
1984	294000
1985	321000
1986	351000
1987	423000
1988	488000
1989	451000
1990	343000
1991	379000
1992	375000
1993	419000
1994	561000
1995	535000
1996	446000
1997	333000
1998	417500
1999	647000
2000	599000
2001	606800
2002	456100
2003	434700
2004	501300
2005	446300
2006	553900
2007	558000
2008	641500
2009	598400
2010	556500