Year current international $ 2000 160.33264414792862 2001 167.8969655528434 2002 178.02084426259657 2003 180.7062213753922 2004 190.38076054320484 2005 199.48785433843554 2006 209.41385870315926 2007 229.1928322575868 2008 253.39460429838743 2009 263.9344975862816 2010 257.64288880456934 2011 264.20824748172174 2012 270.8257123765189 2013 288.3206495855638 2014 302.332833619328 2015 309.3424438527693 2016 327.25523816694596 2017 352.28058909426125 2018 362.5654182535691 2019 367.22732990191275 2020 329.37309908005494 2021 331.41552185122976