Year current US$ 1995 1501000000 1996 1491000000 1997 1511000000 1998 1496000000 1999 1590000000 2000 1722000000 2001 1887000000 2002 2211000000 2003 2700000000 2004 2482000000 2005 2721000000 2006 2319000000 2007 3088000000 2008 3857000000 2009 3251000000 2010 2897000000 2011 3048000000 2012 2457000000 2013 2526000000 2014 2712000000 2015 2456000000 2016 2738000000 2017 3049000000 2018 3239000000 2019 3352000000 2020 1334000000