Year current international $ 2000 0.0333017531767012 2001 0.300530842105267 2002 0.224405352766745 2003 0.221608946976024 2004 0.233804797458247 2005 0.444050901229439 2006 0.333979384341517 2007 0.452281902308701 2008 0.456663330909972 2009 0.378154862223786 2010 0.468805086649265 2011 0.331876038119069 2012 0.284662230319147 2013 0.309233241874379 2014 0.179093690753424 2015 0.054483677174248 2016 0.010729786876535 2017 0.00314355387862609 2018 0.00511722709964397 2019 0.00593166069283203 2020 0.00235124369835616 2021 0.00236137972148528