Year current international $ 2000 177.39327035939343 2001 195.0360505488095 2002 191.35664314173562 2003 197.29562615290678 2004 207.15849058384063 2005 217.95367829435642 2006 218.47002817623112 2007 231.97883286501408 2008 245.68524545170254 2009 282.2689967658479 2010 304.44737663486546 2011 300.35596441944364 2012 303.4753646355269 2013 293.68877897640357 2014 279.48314016597203 2015 303.55347649440233 2016 322.43365423828396 2017 327.96803219544796 2018 315.91016654525504 2019 304.40895097420963 2020 285.0758004431776 2021 296.3040877425277