Year current international $ 2000 0 2001 0 2002 16.0974684120628 2003 16.7926673253272 2004 12.6762765751073 2005 12.1662284850247 2006 16.6414473410956 2007 20.5902637593193 2008 35.4972197761178 2009 41.4946157893472 2010 25.746700308133 2011 34.753811620041 2012 4.53696750493947 2013 21.1071405804763 2014 24.4191326139786 2015 18.5180162278998 2016 18.7841570135101 2017 21.5454959083662 2018 12.7468524866154 2019 9.10981213628563 2020 8.18912295129884 2021 8.17806279583429