Year constant 2011 international $ 1993 279877049371.991 1994 296861146094.259 1995 283865513397.933 1996 299576226036.626 1997 326467879590.483 1998 337812892286.995 1999 331062823661.412 2000 328878958885.002 2001 309996867168.24 2002 265499315110.648 2003 287187873057.117 2004 314469623579.956 2005 337717036966.714 2006 374718107255.101 2007 409712445216.83 2008 439394673538.041 2009 415677678260.894 2010 462184488725.43 2011 505485254599.979 2012 511097565338.729 2013 529696466919.871 2014 506611085929.605 2015 525133781082.626 2016 521036317735.259 2017 541802631973.443 2018 528763871109.061