Year current international $ 1990 1248.4594368441908 1991 1286.1203176875545 1992 1361.4932548385432 1993 1423.4407595198165 1994 1508.4776073991106 1995 1613.3002986420638 1996 1720.4514365827215 1997 1779.6322011341667 1998 1860.6833189072113 1999 1994.0591149964407 2000 2076.8640507432533 2001 2178.032640898759 2002 2255.3497171317695 2003 2421.2993889702484 2004 2630.509646665733 2005 2872.268132504164 2006 3137.778958341748 2007 3412.9091724661976 2008 3537.3628688692393 2009 3754.8450484748955 2010 4013.4993100701563 2011 4249.793992023011 2012 4590.0456120960425 2013 4782.04318829521 2014 4966.098601976751 2015 5188.729685000463 2016 5523.942722509486 2017 5841.1797369997685 2018 6355.713619292677 2019 6745.721053406128 2020 6624.448994313515 2021 7562.139742581408 2022 8509.90275983156 2023 9291.49807745571