Year % of GNI 1981 0.7355786108566127 1982 1.02285287767161 1983 2.137134224003071 1984 3.8440782489895122 1985 3.689272608513478 1986 3.912662029237015 1987 5.475652821939121 1988 4.157730255331353 1989 3.9414520416124823 1990 3.155020546499576 1991 2.904261338991042 1992 2.6747003592951284 1993 3.137639178578619 1994 3.071561207514071 1995 2.6888105997447895 1996 2.5698821151424047 1997 3.8570901541927225 1998 3.553652300458163 1999 3.634715912334599 2000 3.741110426713338 2001 5.62849676818754 2002 4.227375577820431 2003 5.031424248559391 2004 5.416312844947777 2005 5.209911795178612 2006 5.386657633287579 2007 5.1696237326226075 2008 4.605744653135654 2009 4.607368381075544 2010 3.4225736886775144 2011 3.6183975511406112 2012 4.369756198404925 2013 4.110386844120582 2014 4.039927588258628 2015 4.487581781567334 2016 4.855711948872421 2017 5.4967364633474975 2018 6.093461003675882 2019 4.458380236356589 2020 5.15374030762565 2021 3.5082506444174917 2022 4.944134915085218