Year US Dollars adjusted for inflation) 1994 2758501862.26045 1995 3332270264.77958 1996 6296580077.19916 1997 8461947179.52191 1998 9782010631.81418 1999 10721083632.4236 2000 11310743278.9328 2001 11808415927.4057 2002 12434262003.1151 2003 12931632491.3659 2004 13720462043.7462 2005 14922131712.6024 2006 15724715108.0111 2007 16625545811.607 2008 17553771246.6987 2009 17028972709.4197 2010 17176781336.7644 2011 17340940610.8214 2012 17198443692.016 2013 17602502336.29041 2014 17804865646.3737 2015 18352676372.9938 2016 18929698720.1192 2017 19503531387.5533