Year current US$ 1994 1580000.04291534 1995 670000.016689301 1997 280000.001192093 1998 560000.002384186 1999 1500000 2000 379999.99523162795 2002 79999.9982118607 2004 560000.002384186 2005 360000.01430511504 2006 109999.999403954 2007 140000.000596046 2008 200000.00298023198 2009 9999.99977648258 2010 50000.0007450581 2011 79999.9982118607 2017 0 2018 9999.99977648258 2019 9999.99977648258