Year current US$ 1995 1000000 1996 12000000 1997 20000000 1998 24000000 1999 31000000 2000 38000000 2001 65000000 2002 63000000 2003 73000000 2004 172000000 2005 223000000 2006 370000000 2007 484000000 2008 518000000 2009 530000000 2010 646000000 2011 722000000 2012 817000000 2013 880000000 2014 966000000 2015 936000000 2016 1017000000 2017 1204000000 2018 1329000000 2019 1528000000 2020 293000000