Year	Total
1990	3015000000
1991	2754000000
1992	2460000000
1993	1988000000
1994	2413000000
1995	2530000000
1996	2657000000
1997	3193000000
1998	3731000000
1999	3866000000
2000	3663000000
2001	3735000000
2002	3783000000
2003	3865000000
2004	3859000000
2005	4077000000
2006	4119000000
2007	4114000000
2008	4256000000