Year	Total
1971	0
1972	0
1973	0
1974	79790
1975	219600
1976	429000
1977	505900
1978	508200
1979	531400
1980	530100
1981	784100
1982	924000
1983	1059000
1984	1095000
1985	1129000
1986	1038000
1987	1069000
1988	1378000
1989	1252000
1990	1261000
1991	1134000
1992	993300
1993	1201000
1994	1319000
1995	1484000
1996	1555000
1997	1526000
1998	1453000
1999	1360000
2000	1563000
2001	1681000
2002	1739000
2003	1486000
2004	1446000
2005	1604000
2006	1676000
2007	1259000
2008	1356000
2009	1312000
2010	1311000