Year	Total
1980	98020000
1981	117000000
1982	144000000
1983	156000000
1984	182000000
1985	241000000
1986	285100000
1987	298100000
1988	382100000
1989	494100000
1990	606100000
1991	718100000
1992	830100000
1993	942200000
1994	1054000000
1995	1147000000
1996	1141000000
1997	1235000000
1998	1323000000
1999	1379000000
2000	1482000000
2001	1600000000
2002	1766000000
2003	1951000000
2004	2093000000
2005	2000000000
2006	2482000000
2007	2726000000
2008	2991000000