Year constant 2011 international $ 1990 18446731430.8979 1991 16911640411.8503 1992 17421661501.194 1993 17865974737.536 1994 17688099515.8306 1995 17978549234.4949 1996 18539764107.8201 1997 19484731123.3837 1998 20361302114.7697 1999 21488260421.8697 2000 22359645942.8165 2001 23807601771.0527 2002 20715035362.9222 2003 22785272618.4284 2004 23885424220.8755 2005 25091183449.185 2006 26384442795.8008 2007 28218427070.7331 2008 30292941363.2207 2009 28938747335.7645 2010 28996386207.3891 2011 29269019629.4989 2012 29638207020.7156 2013 30312966863.7904 2014 31425001449.7559 2015 32067228006.1358 2016 33327811924.8365