Year current international $ 1990 23888.60000881329 1991 24342.25890481894 1992 25418.990776331895 1993 26387.293733817074 1994 27694.853416234047 1995 28690.875701334695 1996 29967.712718174866 1997 31459.129969155387 1998 32853.6725949234 1999 34515.38130733945 2000 36329.97025957508 2001 37133.620397351704 2002 37997.7424300242 2003 39490.30239031761 2004 41724.64119826138 2005 44123.39964700257 2006 46301.98764855189 2007 48050.22741219505 2008 48570.05942696015 2009 47194.95008938721 2010 48650.664322723205 2011 50065.97894706748 2012 51784.41146920484 2013 53409.75077743717 2014 55304.31553171368 2015 57040.20821366048 2016 58206.614193184105 2017 60322.26142417505 2018 63201.04584837711 2019 65548.07078475719 2020 64317.39891250404 2021 71055.87619382999 2022 77246.6738828675 2023 81695.18707133016