Year % of GNI 1992 7.90781840429818 1993 16.5057565943725 1994 17.4800308102395 1995 14.6611928283836 1996 11.1280582321693 1997 10.3698265755711 1998 12.7800565938007 1999 14.1032890109182 2000 13.4607040086128 2001 13.6801514265884 2002 13.7269552549405 2003 14.031972625396 2004 12.9287499307524 2005 12.63361674713 2006 12.3877615181953 2007 12.6427071402177 2008 12.4462889955202 2009 12.9619262015597 2010 13.65015114493 2011 12.9141320419458 2012 13.2395168119148 2013 13.4352731351114 2014 13.3155582180863 2015 14.6594178683823 2016 15.4077730684231 2017 14.9849366808052 2018 14.5078101682884 2019 14.7763137125355 2020 13.0313675574898 2021 12.1145757623768