Year constant 2011 international $ 1990 16169171245603.1 1991 16389735725280.2 1992 16881616486352.8 1993 17221507184209.7 1994 17770721474379.9 1995 18242657918593.1 1996 18821376303078.6 1997 19405376561878.8 1998 20033274992436.8 1999 20869561109571.1 2000 21710101776232.2 2001 22231479720017.8 2002 22746200215410.2 2003 23256815218629.3 2004 23971348183621 2005 24678954411123.7 2006 25385691823738.1 2007 26065116647000.6 2008 26212879640465.8 2009 25902134812866.1 2010 26346041215668.3 2011 26669123257249 2012 26952737221542.2 2013 27293628024149.9 2014 27860675836104.3 2015 28568507477392.9 2016 29229979314510.2 2017 29904335442192.9