Year	Total
1971	238600
1972	266800
1973	309700
1974	318600
1975	284900
1976	313400
1977	300600
1978	277000
1979	171800
1980	80760
1981	79430
1982	129600
1983	133000
1984	119800
1985	122500
1986	101700
1987	128700
1988	125100
1989	160200
1990	179300
1991	196100
1992	202100
1993	214700
1994	218100
1995	223700
1996	224900
1997	225500
1998	229500
1999	256500
2000	267100
2001	259500
2002	265400
2003	294500
2004	306800
2005	317900
2006	328600
2007	344900
2008	344800
2009	349800