Year current international $ 1990 1432.821211418989 1991 1571.4892624331208 1992 1747.2443610328057 1993 1952.414196529949 1994 2176.722559919319 1995 2385.411050077469 1996 2612.00380394083 1997 2803.7643493216756 1998 2814.579456741587 1999 2982.5725058369153 2000 3244.3456323792357 2001 3511.4860671850543 2002 3817.885428117519 2003 4193.369707057645 2004 4648.224109956551 2005 5188.50579771065 2006 5889.160279481795 2007 6731.474354544294 2008 7393.273670406841 2009 7893.719645404285 2010 8676.842317306697 2011 9487.611580866864 2012 10350.915203819757 2013 10930.306737655728 2014 11567.324642726875 2015 11891.219302488933 2016 12475.48189872231 2017 13252.324310231574 2018 14303.889934474277 2019 15382.0558783832 2020 15634.656581049256 2021 17506.043081247153 2022 19395.571520298592 2023 21080.098713434338