Year current international $ 2000 47.36396054675659 2001 48.64176558163283 2002 49.39351110461661 2003 78.91152921522036 2004 73.34229864970739 2005 75.27309353062743 2006 78.69155344616657 2007 78.55968947544292 2008 81.36648616982043 2009 88.07511195663665 2010 82.20920363335604 2011 84.82468842662597 2012 84.19747462134166 2013 88.23844869921638 2014 91.97755294611619 2015 94.0303620660467 2016 95.5847604074146 2017 99.48844623769816 2018 88.27631311348381 2019 85.05871096245903 2020 92.88245255380598 2021 110.16201075410967