Year constant 2021 international $ 1990 7305.906697520358 1991 7223.506181766807 1992 7872.946777197059 1993 8286.805987487316 1994 8339.532114028092 1995 8650.361548405683 1996 9004.350734382086 1997 9638.686034544102 1998 10121.87576302497 1999 10558.350187766517 2000 10883.10838658905 2001 10985.816576534051 2002 11315.101638722997 2003 11006.712790751362 2004 11135.701393439122 2005 12023.866158237619 2006 12958.157514021106 2007 13744.383476928535 2008 14005.651160590814 2009 13954.827088400947 2010 14921.126900996695 2011 15189.80735996995 2012 15404.802176097939 2013 15955.133309037497 2014 16872.295234618963 2015 17826.548763583458 2016 18793.746264786012 2017 19449.73770028918 2018 20579.193659741333 2019 21387.736128580735 2020 19736.80422667382 2021 21923.301935807267 2022 22761.26668254321 2023 23084.456801464185