Year	Total
1971	57010000
1972	56010000
1973	51010000
1974	68010000
1975	71010000
1976	68010000
1977	105000000
1978	122000000
1979	79010000
1980	67010000
1981	73010000
1982	84020000
1983	79010000
1984	95020000
1985	99020000
1986	101000000
1987	111000000
1988	115000000
1989	126000000
1990	136000000
1991	133000000
1992	144000000
1993	112000000
1994	130000000
1995	132000000
1996	127000000
1997	162000000
1998	158000000
1999	197000000
2000	213000000
2001	228000000
2002	266000000
2003	273000000
2004	320100000
2005	318100000
2006	338100000
2007	334100000
2008	388100000