Year	current US$
1990	8199999.906122686
1991	23740000.30010936
1992	59010000.22888183
1993	53660000.20503993
1994	56220000.56505202
1995	52189999.93801117
1996	34009999.275207505
1997	32979999.795556057
1998	37610000.53584575
1999	27519999.949261595
2000	27709999.61718916
2001	25350000.003352765
2002	22569999.668747175
2003	29039999.18326731
2004	23350000.59939919
2005	230000.004172325
2006	129999.995231628
2007	90000.0035762787
2008	129999.995231628
2009	79999.9982118607
2010	70000.0002980232