Year	Total
1971	130700
1972	137200
1973	102500
1974	115000
1975	87360
1976	85810
1977	117400
1978	121800
1979	136000
1980	130300
1981	88050
1982	49180
1983	41360
1984	31470
1985	41790
1986	55290
1987	70940
1988	80480
1989	99480
1990	104900
1991	105400
1992	82890
1993	38090
1994	72230
1995	52540
1996	168300
1997	179100
1998	152800
1999	70940
2000	61740
2001	74890
2002	73090
2003	125200
2004	138300
2005	84180
2006	85810
2007	78680
2008	79880
2009	220800
2010	298200