Year % of GNI 1990 1.29809668219217 1991 0.896357485613698 1992 0.896357485613698 1993 0.89615469553749 1994 9.15018572182327 1995 6.85278229591129 1996 10.8603972912644 1997 6.07193456311931 1998 8.57085354066547 1999 12.2956036699593 2000 11.2280672137364 2001 12.9155694980411 2002 16.0932514548925 2003 12.7862895995569 2004 18.4230752439403 2005 19.0383083060463 2006 10.5813253834563 2007 6.86104108876119 2008 7.34267831692101 2009 6.37999130926382 2010 15.041729054282 2011 16.0060354560823 2012 14.186247786457 2013 16.5627692286227 2014 11.6453038860287 2015 7.8316936616284 2016 5.38233644068382 2017 3.4256520841285 2018 6.1714019656566 2019 8.55833040947788 2020 9.69617845590772 2021 8.93014998728223