Year current US$ 1992 500000 1993 680000.007152557 1994 610000.014305115 1995 370000.00476837205 1996 409999.99642372096 1997 360000.01430511504 1998 3200000.04768372 1999 1419999.95708466 2000 790000.021457672 2001 1460000.03814697 2002 2910000.08583069 2003 1289999.96185303 2004 2440000.05722046 2005 2220000.02861023 2006 10670000.076293899 2007 9520000.45776367 2008 28170000.0762939 2009 27889999.3896484 2010 5130000.11444092 2011 2480000.01907349 2012 2210000.03814697 2013 1980000.01907349 2014 79999.9982118607 2015 -330000.013113022 2016 -629999.995231628 2017 -490000.009536743 2018 22000000 2019 54759998.3215332 2020 114919998.168945 2021 44040000.9155273 2022 43209999.0844727