Year % of GNI 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 8.64415377523076E-05 2018 0.000142218379093476 2019 0.000112340752847691 2020 0.000220485558410438 2021 0.0316430241693597