Year current US$ 1995 72000000 1996 87000000 1997 96000000 1998 98000000 1999 117000000 2000 116000000 2001 114000000 2002 114000000 2003 197000000 2004 232000000 2005 257000000 2006 360000000 2007 385000000 2008 381000000 2009 388000000 2010 421000000 2011 410000000 2012 502000000 2013 660000000 2014 953000000 2015 849000000 2016 960000000 2017 997000000 2018 1009000000 2019 1111000000 2020 325000000