Year	% of GNI
1977	13.77587765894526
1978	10.049274580817018
1979	6.584010690865059
1980	9.41492892636375
1981	10.340198514701228
1982	9.486072315864067
1983	8.398402525229422
1984	7.918397701320645
1985	8.058087964409602
1986	6.679578060649223
1987	7.175486375335838
1988	7.2823328267866145
1989	7.478651455675845
1990	5.9614604105208295
1991	6.718731303553634
1992	7.5694165341642385
1993	8.907511206966287
1994	9.714792786014332
1995	9.7494413546904
1996	10.607147712732779
1997	11.312195150354356
1998	10.64038572906429
1999	10.129987902596675
2000	10.161720358954073
2001	8.892876543161275
2002	9.291538782069914
2003	9.510958332200158
2004	10.706093356780958
2005	12.540660358406557
2006	14.196800601596376
2007	14.707485603020455
2008	14.242242679042805
2009	13.05089691837511
2010	15.043176065433363
2011	14.498062781225835
2012	13.937329477025811
2013	12.737240768642833
2014	12.022266480311409
2015	12.616258519327882
2016	12.97214508813478
2017	13.54262603262059
2018	13.494767188915805
2019	13.269605994763406
2020	11.740883029928064
2021	12.052567770070109