Year current US$ 1992 1850000.02384186 1993 3549999.95231628 1994 3630000.1144409203 1995 4940000.05722046 1996 10000000 1997 4340000.15258789 1998 20500000 1999 5340000.15258789 2000 5099999.90463257 2001 4309999.94277954 2002 6780000.20980835 2003 8109999.65667725 2004 11329999.923706101 2005 10039999.961853001 2006 14310000.4196167 2007 6530000.20980835 2008 25020000.4577637 2009 19489999.7711182 2010 21540000.915527303 2011 36119998.9318848 2012 14539999.961853001 2013 13869999.8855591 2014 14390000.3433228 2015 21090000.1525879 2016 17840000.1525879 2017 17670000.0762939 2018 16379999.160766602 2019 12600000.3814697 2020 16129999.160766602 2021 25329999.9237061 2022 498260009.765625