Year % of GNI 1992 9.047917724303797 1993 7.081980627131792 1994 6.07371229062751 1995 6.973416210453006 1996 8.42097115107164 1997 8.421682381282892 1998 7.219805013931779 1999 10.256642232796723 2000 11.37208031708175 2005 20.80434796799242 2006 22.82371060841797 2007 22.805014244130753 2008 23.84921310339364 2009 14.3251001497434 2010 19.412148469624395 2011 22.712436054927796 2012 21.77235245478056 2013 19.588299937560098 2014 16.686118106222743 2015 9.399773052389966 2016 10.00758427649893 2017 12.577532278720458 2018 15.127239708827293 2019 14.03031744964643 2020 8.045056525598017