Year % of GNI 1980 5.596080199773437 1981 12.43402924525633 1982 9.403171738696466 1983 9.086204630646678 1984 15.078536114782441 1985 15.384837687206245 1986 10.080483141899467 1987 11.454229267498695 1988 11.722930596336726 1989 13.081581023441776 1990 10.223672274759185 1991 9.501334730593625 1992 10.569252199585637 1993 12.302530406957967 1994 13.78983906753545 1995 9.612967067800732 2003 4.436270272943503 2004 6.863964581922952 2005 8.58157751764908 2006 10.479969686345834 2007 12.767709046063032 2008 11.830141828322832 2009 13.892462406917971 2010 13.85610158840194 2011 10.80926533251446 2012 12.051077357893316 2014 9.781333973604562 2015 13.407086266587587 2016 8.167542748824022 2017 11.324245641687183 2018 12.143865146452852 2019 10.305303512329212 2020 9.903577713863154 2021 14.677321495492288 2022 15.36869135739143