Year current international $ 1990 5604.22708018275 1991 5839.641514923386 1992 5919.16717280763 1993 6200.353926160154 1994 6507.647684203662 1995 6929.964012315502 1996 7003.991708304234 1997 7262.672952100749 1998 7192.318912799711 1999 7047.614278528365 2000 6906.10318986937 2001 6884.838140648651 2002 6891.19777513459 2003 7239.483184840599 2004 7645.715265850979 2005 7964.634512748922 2006 8515.068466899495 2007 9128.438344237786 2008 9812.207400871213 2009 9747.785218748877 2010 10835.451278141783 2011 11384.372178331183 2012 10905.661229547637 2013 12090.108449457039 2014 12563.790936541209 2015 12640.377622581098 2016 13291.938101817146 2017 13940.517955850006 2018 14104.101585273267 2019 14117.165085167197 2020 14276.545573565802 2021 15361.084749494852 2022 16284.695300967198 2023 17465.86097103946