Year % of GNI 1995 0.04066927823139966 1996 0.03804803523079392 1997 0.02724610958742657 1998 0.0093095287192576 1999 0.01003641808878147 2000 0.027292286553653417 2001 0.03377758731681076 2002 0.019176606944001327 2003 0.016876695529375922 2004 0.03170536334845099 2005 0.020582249168299517 2006 0.02483956885775893 2007 0.02262216171775507 2008 0.041029325852369264 2009 0.015281366075390369 2010 0.0321722518995709 2011 0.038087919485785604 2012 0.030947760767968402 2013 0.01870438487316492 2014 0.014677305626326501 2015 0.01301003821019836 2016 0.01210630132089718 2017 0.01321067772405662 2018 0.012047634770320201 2019 0.00948771266653098 2020 0.00778039222773137 2021 0.01241181522499209