Year current international $ 2000 0 2001 0 2002 1 2003 1 2004 0 2005 1 2006 1 2007 1 2008 1 2009 1 2010 2 2011 3 2012 2 2013 2 2014 2 2015 5 2016 5 2017 3 2018 7 2019 10 2020 17 2021 17