Year current international $ 1990 7517.818474394962 1991 6964.233364531326 1992 6818.422354012635 1993 7008.7820225008345 1994 7424.366403316563 1995 7990.270001823349 1996 8399.116054067996 1997 8704.639223423794 1998 9097.064391557962 1999 9396.483258528428 2000 10015.992566463898 2001 10801.627076400942 2002 11679.867906623114 2003 12341.02218459724 2004 13483.828143604098 2005 14312.570540279637 2006 15921.78153782912 2007 17765.565856986712 2008 19675.707719116883 2009 19702.092188983635 2010 20822.517158982602 2011 22311.14449163785 2012 23109.432933554424 2013 23863.244765478434 2014 24930.656640737245 2015 26138.783213456503 2016 27759.475228336138 2017 29835.979553682333 2018 32020.391190870774 2019 35482.03869654102 2020 35850.34879465286 2021 39902.21583176556 2022 45163.43490209067 2023 48261.15242683963