Year	current US$
1990	2409999.9330937886
1991	13549999.959766835
1992	257469995.68492147
1993	20659999.735653408
1994	62400000.30025841
1995	55370000.64551824
1996	47430000.86955732
1997	54930000.36850569
1998	45300000.48130747
1999	34649999.77126715
2000	38670000.08374451
2001	44249999.86588958
2002	34170000.13962385
2003	30699999.887496226
2004	28719999.831169832
2005	5619999.88555908
2006	5059999.94277954
2007	6099999.90463257
2008	2720000.02861023
2009	709999.978542328
2010	79999.9982118607