Year current international $ 2000 114.001156868705 2001 123.238552057334 2002 133.473358229391 2003 131.445025623739 2004 137.490019731434 2005 163.924063930679 2006 157.352415533985 2007 171.507136263857 2008 192.71115585995 2009 223.761241015644 2010 238.759446059191 2011 239.253962949286 2012 266.043635713405 2013 299.055890497447 2014 340.796430001975 2015 350.917788286327 2016 371.778911349359 2017 385.968967302684 2018 420.3324186951 2019 439.891374830221 2020 520.512385056825 2021 555.068898805844