Year current US$ 1995 428000000 1996 492000000 1997 608000000 1998 642000000 1999 652000000 2000 641000000 2001 773000000 2002 806000000 2003 847000000 2004 852000000 2005 970000000 2006 1047000000 2007 1243000000 2008 1432000000 2009 1404000000 2010 1648000000 2011 1768000000 2012 1900000000 2013 2105000000 2014 2118000000 2015 2539000000 2016 2700000000 2017 2893000000 2018 3353000000 2019 3627399902.34375 2020 938000000