Year	2007 US$
1992	99130000
1994	181000000
1995	96170000
1996	111800000
1997	103000000
1998	142100000
1999	230000000
2000	247900000
2001	251000000
2002	270100000
2003	216800000
2004	162700000
2005	209200000
2006	207800000
2007	253500000