Year	current US$
1991	119999.997317791
1993	59999.9986588955
1994	200000.00298023198
1995	109999.999403954
1996	70000.0002980232
1997	100000.00149011599
1998	310000.002384186
1999	159999.99642372102
2001	239999.994635582
2002	230000.004172325
2003	1179999.94754791
2004	4429999.82833862
2005	3690000.05722046
2006	1860000.01430511
2007	2230000.01907349
2008	1879999.99523163
2009	550000.011920929