Year current international $ 1990 16983.154889460326 1991 17815.53129958433 1992 18307.89187039652 1993 18544.02627427131 1994 19306.087644312378 1995 20192.398662164338 1996 20860.99908453432 1997 21709.932674009182 1998 22692.801348646375 1999 23593.61392776071 2000 25050.46043635633 2001 26179.189748915665 2002 27129.156995152265 2003 27620.991043877595 2004 28847.195800117566 2005 29883.65187273149 2006 32401.065612754137 2007 34192.824378250305 2008 35307.41050115328 2009 34624.00173912859 2010 35647.00842424605 2011 37347.20751653636 2012 37765.18761929025 2013 38998.208406266225 2014 39938.45970988999 2015 40862.48745062842 2016 43459.98266133155 2017 45569.13230032009 2018 47660.561025240815 2019 51176.57787518246 2020 49365.20039898405 2021 54703.53851778273 2022 59750.264931634854 2023 62766.446352212566