Year current US$ 1995 14000000 1996 15000000 1997 16000000 2003 4000000 2004 4000000 2005 5000000 2006 6000000 2007 13000000 2008 12000000 2009 12000000 2010 14000000 2011 16000000 2012 13000000 2013 10000000 2014 54000000 2015 4000000 2016 6000000 2017 7000000 2018 9000000 2019 9300000.19073486 2020 5000000