Year	Total
1971	47010000
1972	61010000
1973	39010000
1974	51010000
1975	49010000
1976	71010000
1977	76010000
1978	84020000
1979	95020000
1980	79010000
1981	92020000
1982	120000000
1983	131000000
1984	158000000
1985	143000000
1986	165000000
1987	190000000
1988	197000000
1989	236000000
1990	266000000
1991	280100000
1992	265000000
1993	280100000
1994	307100000
1995	335100000
1996	362100000
1997	385100000
1998	418100000
1999	475100000
2000	535100000
2001	594100000
2002	627100000
2003	677100000
2004	773100000
2005	820100000
2006	806100000
2007	893200000
2008	931200000