Year constant 2021 international $ 1990 42571.87981099148 1991 44421.72167049385 1992 44933.036268389515 1993 44202.5669593403 1994 45103.12981809591 1995 45665.178805966905 1996 45900.097511823944 1997 46654.389545635466 1998 47586.77067234125 1999 48453.529452215545 2000 49797.25302780227 2001 50549.46954700516 2002 50364.64636705956 2003 49984.35442230175 2004 50582.69481213579 2005 50981.750349176975 2006 52987.17374768817 2007 54637.3246244388 2008 55266.76285444108 2009 52252.19462551109 2010 54519.734404644194 2011 57719.844219245 2012 57852.69278569181 2013 57947.49631905767 2014 58981.477767852055 2015 59345.45562456567 2016 60181.10021692374 2017 61563.58409050447 2018 61981.11607119221 2019 62506.58155862616 2020 60065.50978913793 2021 61939.65158501369 2022 62605.47303867987 2023 61909.02730880183