Year	% of GNI
1996	15.091621211072344
1997	14.926044375353019
1998	13.379997977612557
1999	11.54318326389151
2000	11.952377245163177
2001	11.169782297644463
2002	11.124698795610257
2003	12.133081847822638
2004	13.600638306304642
2005	14.239507343998039
2006	15.694442671353894
2007	17.457815148345308
2008	16.91702982753196
2009	14.746938158354332
2010	16.498909345727643
2011	15.64748308893704
2012	15.206507841296702
2013	15.473853697078333
2014	15.837814012176505
2015	15.590165825013813
2016	15.143203450702462
2017	15.990484987306619
2018	15.160994791091195
2019	14.152193495162301
2020	13.289388864406444
2021	14.442796110284124