Year current international $ 2000 152.145796685802 2001 159.3370743663 2002 165.091763256134 2003 156.397116396427 2004 163.396621050649 2005 170.243618241816 2006 180.181976376618 2007 186.122235538258 2008 203.093761122285 2009 224.721042543371 2010 228.897133239678 2011 244.23391426876 2012 270.969875475629 2013 284.826180695654 2014 267.840812403637 2015 275.277121216769 2016 286.28573924611 2017 310.944064076208 2018 317.609786528669 2019 335.314457336453 2020 368.100461143053 2021 377.355357016529