Year	Total
1975	92020000
1976	116000000
1977	130000000
1978	150000000
1979	225000000
1980	300100000
1981	350100000
1982	450100000
1983	539100000
1984	604100000
1985	655100000
1986	701100000
1987	753100000
1988	821100000
1989	840200000
1990	874200000
1991	927200000
1992	1074000000
1993	1192000000
1994	1317000000
1995	1422000000
1996	1562000000
1997	1628000000
1998	1780000000
1999	1835000000
2000	1981000000
2001	2110000000
2002	2500000000
2003	2678000000
2004	2941000000
2005	3186000000
2006	3652000000
2007	4018000000
2008	4460000000