Year current US$ 1995 70000000 1996 94000000 1997 34000000 1998 60000000 1999 218000000 2000 398000000 2001 451000000 2002 492000000 2003 537000000 2004 756000000 2005 880000000 2006 1057000000 2007 1479000000 2008 1850000000 2009 2013000000 2010 1778000000 2011 1833000000 2012 1623000000 2013 1670000000 2014 1849000000 2015 1613000000 2016 1821000000 2017 2050000000 2018 2306000000 2019 2458000000 2020 1243000000