Year	Total
1971	161300
1972	173800
1973	160200
1974	135800
1975	111900
1976	114600
1977	105700
1978	115600
1979	138500
1980	93600
1981	63680
1982	46420
1983	59760
1984	66780
1985	60780
1986	65080
1987	69640
1988	82930
1989	98950
1990	50370
1991	10050
1992	59810
1993	106600
1994	114000
1995	115000
1996	115300
1997	115200
1998	117500
1999	107800
2000	114300
2001	112000
2002	100800
2003	121000
2004	131600
2005	146900
2006	151000
2007	146900
2008	153300
2009	130200