Year % of GNI 1990 59.7289533703816 1991 57.4908743556694 1992 32.8886206168997 1993 34.3210696057043 1994 32.1366056016719 1995 32.0892728259265 1996 30.1040820606068 1997 23.3112962142203 1998 22.1572573843858 1999 21.5608240044827 2000 17.1695509697117 2001 9.71273529633574 2002 8.00082104419646 2003 6.08647368718252 2004 7.85144071899452 2005 11.079638957882 2006 15.5380019257106 2007 13.9346343927752 2008 10.0294813763866 2009 11.2996135974836 2010 9.28263647938917 2011 9.5818699866021 2012 9.81748914907194 2013 9.14173926077776 2014 10.4724838264592 2015 13.9900012792243 2016 14.4780350159068 2017 11.4241794159353 2018 8.66077748399882 2019 9.45247482031211 2020 15.0543722481692 2021 11.994915893295