Year	current US$
1990	271650.67596523813
1991	300680.1915628827
1992	330481.88665499457
1993	249564.79164399955
1994	263936.93004062877
1995	427713.77720189205
1996	412798.5550876737
1997	518858.82230699586
1998	536678.5858773686
1999	663655.7197238532
2000	103778.52387514805
2001	100752.95767858565
2002	135719.34239686443
2003	223423.61506543166
2004	203345.9042531285
2005	180454.27435311762
2006	202564.3593657401
2007	210029.18652600012
2008	318744.3485788196
2009	288569.00191781396
2010	349490.3037079912
2011	402284.5637223907