Year % of GNI 1993 0.00695618582929135 1994 0.00929779197842005 1995 0.0151477881381098 1996 0.0163751816816309 1997 0.0166450840973556 1998 0.0129497385790451 1999 0.00688825384902536 2000 0.0072746337430232 2001 0.00839529711573829 2002 0.0095657144939631 2003 0.0140588118625185 2004 0.0160631182440428 2005 0.0103395408970529 2006 0.012080247543881 2007 0.0181753148368077 2008 0.0311382818340949 2009 0.0273067622690012 2010 0.0263364242527979 2011 0.0343705626771639 2012 0.0269389629743961 2013 0.0246897745030873 2014 0.0376101948919172 2015 0.0271077061513839 2016 0.0309509795420863 2017 0.0339172924119211 2018 0.0160934982073293 2019 0.0132538747330774 2020 0.0180233570744568 2021 0.0161998222617596