Year	% of GNI
1980	9.221525461987078
1981	7.807221237238701
1982	9.11267184581698
1983	8.069495093311644
1984	6.721573634856542
1985	6.466384578351951
1986	18.110392409034848
1987	11.512777043996353
1988	8.346827527156067
1989	9.64461563935774
1990	17.210013570960285
1991	13.28954704843972
1992	15.929636837183805
1993	10.397556907148209
1994	11.05118727899618
1995	16.3619004076008
1996	14.613865492633307
1997	15.971029846775188
1998	22.200981108773043
1999	13.4910978033466
2000	14.3210971930834
2001	7.99892754762158
2002	8.36869047916451
2003	12.7688004343858
2004	11.132697979574619
2005	10.063403560337926
2006	8.551632316437885
2007	10.259397156043546
2008	9.6353769691805
2009	9.886011937254622
2010	8.584829594219412
2011	8.913079174358838
2012	7.632793802332453
2013	6.250421773795383
2014	7.022800601706527
2015	8.899472013601489
2016	12.330911655199415
2017	10.88113052518049
2018	7.578118670407955
2019	6.754803101764314
2020	7.486562208384533
2021	8.14750253502331