Year current international $ 2000 191.2028611584053 2001 209.30170659955473 2002 210.13526208084602 2003 216.27614946131027 2004 227.21397246219007 2005 238.52759529309893 2006 237.1333669032612 2007 252.1554901054211 2008 268.0806200826216 2009 308.5396612314703 2010 335.7042127769045 2011 335.83124821822804 2012 348.60150784866835 2013 342.59201392157735 2014 328.86045702075484 2015 350.081327077542 2016 394.4440945150792 2017 407.4739763328746 2018 404.5938141918752 2019 374.1616991387046 2020 335.68046333739244 2021 349.3575928648217