Year % of GNI 1982 3.71885459278542 1983 5.10943361837209 1984 7.46155364411542 1985 5.74889806343952 1986 5.17958207097452 1987 3.10334594900914 1988 4.32090212230707 1989 5.66295923217406 1990 4.62378606278329 1991 7.51792710028212 1992 13.4971020915119 1993 16.2585461721615 1994 19.1574866053091 1995 15.1867192231133 1996 22.0010405929055 1997 24.2937765223021 1998 18.8857355540246 1999 17.6234450434884 2000 14.6104633692239 2001 15.0286817329896 2002 16.9841941809746 2003 18.1812327990825 2004 21.5277380096198 2005 21.4765187029833 2006 17.9688257530988 2007 17.1339270894135 2008 22.7897963426004 2009 17.9890267549601 2010 19.0065492633908 2011 16.8486692536163 2012 18.9423238139204 2013 22.9812299289701 2014 25.7291163417949 2015 16.90706395583 2016 24.6264403009806 2017 24.1667868917915 2018 18.3717427792355 2019 17.3086727177512 2020 14.2732601674123 2021 10.1481231616077