Year current international $ 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0.01909712859557 2008 0.0101877062083651 2009 0.008869273573144 2010 0.00230925046308943 2011 0.00281042318578823 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0.141867255222506 2021 0.053747349674522