Year constant 2021 international $ 1990 36668.0561103461 1991 36691.72488409732 1992 36975.849013897874 1993 36974.83141061156 1994 37706.5575596824 1995 38442.92705958224 1996 39269.44334982002 1997 40344.17838991422 1998 41226.48358638482 1999 42429.922880984755 2000 43940.58386661025 2001 44468.13380916508 2002 44949.96432212621 2003 45645.44381352793 2004 46910.64801152215 2005 47955.5987247106 2006 49156.68927856623 2007 50192.42176394339 2008 50108.421681965614 2009 48030.30455330127 2010 49215.767093296425 2011 49928.64051766325 2012 50244.19987323542 2013 50713.00892266836 2014 51396.30210267059 2015 52206.338030789615 2016 52910.89526460782 2017 54029.834140222825 2018 55042.68322780137 2019 55852.54843550859 2020 53233.68691188183 2021 56189.78629851833 2022 57515.01324858941 2023 58198.76234755403