Year	current US$
1988	1039999.96185303
1989	12119999.8855591
1990	1659999.9666214
1991	189999.99761581398
1992	409999.99642372096
1993	779999.971389771
1994	639999.985694885
1995	670000.016689301
1996	750000
1997	829999.983310699
1998	949999.988079071
1999	2180000.0667572
2000	2559999.94277954
2001	2519999.98092651
2002	4420000.07629395
2003	4059999.94277954
2004	3910000.08583069
2005	939999.997615814
2006	589999.973773956
2007	889999.985694885
2008	1059999.9427795399
2009	1220000.02861023
2010	1009999.99046326
2011	3240000.00953674
2012	2992300.03356934
2013	2984488.01040649
2015	450487.971305847