Year current international $ 2000 0.507255114430443 2001 1.2926754477223 2002 1.52546370371059 2003 6.01592894453482 2004 5.29054054267786 2005 6.27011017277627 2006 5.62979912977559 2007 3.51491720536883 2008 2.94609654426656 2009 8.3202511951271 2010 5.33544768810609 2011 4.73815097919301 2012 3.2695327957587 2013 2.56545315740093 2014 1.59647634679925 2015 1.35903984207977 2016 1.25772768905793 2017 1.51941142727666 2018 1.35896074458174 2019 1.36975763989907 2020 1.64246866238177 2021 2.07587924236828