Year constant 2011 international $ 1990 17667920635.1018 1991 18522736818.1618 1992 18884956809.258 1993 20663372561.736 1994 20949227550.6565 1995 21441525398.6184 1996 21417139693.173 1997 21172885809.1662 1998 20678593453.2729 1999 20895237673.719 2000 21078844868.5131 2001 21362340484.8925 2002 21789008576.839 2003 22587862831.5862 2004 22886864041.3914 2005 23091426359.7959 2006 23760875754.9743 2007 24101120574.4914 2008 23905482932.8863 2009 22868785762.6335 2010 22535393531.822 2011 22924301243.0723 2012 22783335464.3111 2013 22898121884.1595 2014 23055687880.1108 2015 23264306347.2891 2016 23585506943.1807 2017 23816304389.0637 2018 24258399038.5728