Year constant 2021 international $ 1990 3360.4773961323767 1991 3213.8775077071705 1992 3401.885898788484 1993 3691.0646319129805 1994 3970.233626855456 1995 3992.1584402641656 1996 4194.737687377433 1997 4454.779390224728 1998 4334.731581687279 1999 4440.548326957443 2000 5323.15229669184 2001 5564.747240364772 2002 5905.640359551414 2003 6166.206352677416 2004 6327.264659423306 2005 6686.193364280047 2006 7028.02084425348 2007 7981.5081460979045 2008 8143.52211863026 2009 8560.122376387704 2010 9329.549606784842 2011 9929.704646163858 2012 10166.598058513171 2013 10324.264363363123 2014 10781.651839036755 2015 11365.186005764477 2016 12043.988978457248 2017 12334.45299777338 2018 12637.89660501307 2019 13305.300909138166 2020 12182.504751191425 2021 12664.170932009496 2022 13334.546421198314