Year	Total
1971	37830
1972	38260
1973	37400
1974	42990
1975	54000
1976	52020
1977	47980
1978	68010
1979	60960
1980	74980
1981	66980
1982	76960
1983	148000
1984	278000
1985	281900
1986	345000
1987	392900
1988	415000
1989	426000
1990	428800
1991	436400
1992	427700
1993	499600
1994	564500
1995	443800
1996	545500
1997	561800
1998	559400
1999	617100
2000	654300
2001	608000
2002	647000
2003	617500
2004	637300
2005	591800
2006	613100
2007	777000
2008	971100
2009	792900
2010	742600