Year current international $ 2000 246.878619974085 2001 289.252462451149 2002 295.645812630851 2003 285.370822768862 2004 280.134478554553 2005 298.984584270388 2006 332.025237608512 2007 280.180574536842 2008 360.139945426666 2009 364.726057422025 2010 358.420277873752 2011 376.885440976372 2012 390.324843556904 2013 418.871134057431 2014 450.79212432872 2015 466.916054701162 2016 506.066240930381 2017 521.282677356541 2018 502.465689171846 2019 530.657421824687 2020 525.76496549787 2021 554.600456131081