Year	% of GNI
1976	16.5639999902916
1977	19.1340983684495
1978	18.1031518646188
1979	23.2307145714858
1980	22.2673925333093
1981	22.3457013451849
1982	21.8450791914015
1983	19.9859750792941
1984	23.3910843192101
1985	23.1706122202324
1986	27.214450696453
1987	26.0237430342065
1988	24.8471659950877
1989	26.5178503016175
1990	23.2370747675955
1991	17.2545776271324
1992	18.6798998765707
1993	24.9243759284607
1994	26.1421773688582
1995	22.3124279992532
1996	20.3660003415751
1997	18.6193618091892
1998	24.2913725782394
1999	18.9133824159762
2000	17.7210107055038
2001	17.0635887576376
2002	18.446699176495
2003	18.8839397436108
2004	18.321500409538
2005	18.1601323878708
2006	18.1610542924644
2007	14.0629545651952
2008	14.4296337501405
2009	16.2255223677985
2010	13.5251490467985
2011	16.2506381782969
2012	12.5051004284278
2013	11.6503536842044
2014	9.84386816673244
2015	13.4250599841853
2016	13.9921226839138
2017	16.2246554696757
2018	16.0107084934471
2019	15.11104191031
2020	10.8152155702551
2021	12.4112855871925