Year current US$ 1995 973000000 1996 1026000000 1997 1063000000 1998 1083000000 1999 1016000000 2000 935000000 2001 884000000 2002 1254000000 2003 1266000000 2004 1621000000 2005 1759000000 2006 2426000000 2007 2754000000 2008 3539000000 2009 3472000000 2010 4390000000 2011 4351000000 2012 5123000000 2013 5145000000 2014 5518000000 2015 4968000000 2016 4943000000 2017 5549000000 2018 6221000000 2019 6765000000 2020 1745000000