Year current international $ 1990 2647.413131213213 1991 2739.1443838984264 1992 2807.9357290388093 1993 2900.235235383984 1994 2998.1357866296835 1995 3138.9784632391015 1996 3313.6654621207954 1997 3480.061444462453 1998 3509.4010682272506 1999 3637.725305234308 2000 3877.0998495321955 2001 4056.813410791225 2002 4247.9039577614485 2003 4517.750027237686 2004 4929.703892689991 2005 5375.79866649248 2006 5968.122757170956 2007 6565.090188481918 2008 7050.856348910418 2009 7235.10800360599 2010 7771.792141824993 2011 8327.71501003682 2012 8806.739087485892 2013 9210.761585566484 2014 9500.457721652687 2015 9593.434462411518 2016 9936.31958737274 2017 10440.17050034122 2018 11132.476448911864 2019 11746.855990507549 2020 11743.293720445967 2021 13155.865935077376 2022 14529.842403441682 2023 15625.810611703051