Year current US$ 1995 486792724.609375 1996 552329589.84375 1997 603000000 1999 782000000 2000 902000000 2001 998000000 2002 1131000000 2003 1344000000 2004 1700000000 2005 1998000000 2006 2296000000 2007 3188000000 2008 3613000000 2009 3501000000 2010 4100000000 2011 5317000000 2012 5389000000 2013 5695000000 2014 6237000000 2015 6693000000 2016 7450000000 2017 8632000000 2018 8494000000 2019 8391000000 2020 2302000000