Year current US$ 1995 8000000 1996 14000000 1997 12000000 1998 12000000 1999 8000000 2000 11000000 2001 11000000 2002 13000000 2003 5000000 2004 4000000 2005 1000000 2006 3000000 2007 1299999.95231628 2008 699999.988079071 2009 400000.00596046395 2010 500000 2011 479999.989271164 2012 1000000 2013 200000.00298023198 2014 1000000 2015 400000.00596046395 2016 100000.00149011599 2017 300000.011920929 2018 300000.011920929 2019 3700000.04768372 2020 2799999.95231628