Year current US$ 1995 85000000 1996 86000000 1997 149000000 1998 206000000 1999 222000000 2000 217000000 2001 201000000 2002 245000000 2003 382000000 2004 453000000 2005 361000000 2006 382000000 2007 482000000 2008 425000000 2009 319000000 2010 390000000 2011 415000000 2012 558000000 2013 621000000 2014 821000000 2015 817000000 2016 829000000 2017 873000000 2018 1014000000 2019 1306000000 2020 636000000