Year current US$ 1995 24926000000 1996 25962000000 1997 28529000000 1998 33452000000 1999 41531000000 2000 41894000000 2001 41980000000 2002 46746000000 2003 53888000000 2004 62843000000 2005 65798000000 2006 69018000000 2007 79463000000 2008 77739000000 2009 60554000000 2010 60353000000 2011 60446000000 2012 61169000000 2013 60427000000 2014 67132000000 2015 68395000000 2016 67108000000 2017 66639000000 2018 70729000000 2019 71516000000 2020 21698000000