Year current US$ 1991 90000.0035762787 1992 50000.0007450581 1993 50000.0007450581 1994 50000.0007450581 1995 50000.0007450581 1997 19999.9995529652 1998 9999.99977648258 1999 39999.9991059303 2000 59999.9986588955 2001 50000.0007450581 2002 360000.01430511504 2003 79999.9982118607 2004 39999.9991059303 2005 29999.999329447703 2006 449999.988079071 2007 349999.99403953605 2008 109999.999403954 2009 50000.0007450581 2010 70000.0002980232 2011 109999.999403954 2012 70000.0002980232 2013 759999.990463257 2014 340000.00357627904 2015 209999.993443489 2016 129999.995231628 2017 180000.00715255702 2018 100000.00149011599 2019 59999.9986588955 2020 239999.994635582 2021 39999.9991059303 2022 280000.001192093