Year current international $ 2000 49.5457964035662 2001 54.806370348828 2002 58.3742739563896 2003 60.2133358258036 2004 60.2788841230127 2005 65.3564850833621 2006 64.260224686398 2007 65.1513969023546 2008 67.076411344936 2009 76.3571291909854 2010 87.9341467565728 2011 90.1972968660698 2012 104.953797658599 2013 123.249612110163 2014 126.10806217907 2015 125.163835981048 2016 140.655995505471 2017 134.194770354971 2018 126.563554485581 2019 146.888140227729 2020 135.812604040907 2021 164.125850862395