Year current international $ 2000 50.3921800108276 2001 48.8857515060449 2002 47.1704962461375 2003 46.9669439765227 2004 34.1610610296056 2005 32.9514153137344 2006 40.0599524384134 2007 37.6520152863954 2008 46.4907999150462 2009 43.917034354297 2010 47.765692145663 2011 45.0308830831651 2012 40.2672975464184 2013 71.614274944395 2014 95.3495512631248 2015 74.2883889696147 2016 60.7385016220421 2017 47.75508337407 2018 43.7264805442966 2019 48.1660419810312 2020 48.3644771027329 2021 50.8809048320124