Year	% of GNI
1971	21.916747269607068
1972	18.593334536249817
1973	15.40922753977859
1974	16.033692104187566
1975	25.45876059997827
1976	29.362521421980073
1977	24.63870258363715
1978	26.565753616058235
1979	28.86577778383591
1980	28.86029608108328
1981	32.0817721653315
1982	29.188442538657505
1983	26.59923305254478
1984	26.552908293789038
1985	23.169369291370455
1986	24.283876331409452
1987	27.057714303527177
1988	29.99599152220214
1989	27.315137698328346
1990	28.610180113623283
1991	29.251331299245553
1992	27.300063281307146
1993	25.665724819688002
1994	25.429368885905674
1995	23.065630897381023
1996	18.837396886886662
1997	20.778363840045788
1998	19.53744012562659
1999	20.6179249267118
2000	16.29600808649267
2001	16.909160359298514
2002	20.272444697182948
2003	18.845585907300507
2004	16.35709481891924
2005	15.3397404742801
2006	12.856753571898615
2007	15.048443942398388
2008	19.83803685935904
2009	16.196346354663653
2010	19.30207352306977
2011	18.707501507837765
2012	18.67629066067159
2013	21.761676451478603
2014	26.15248418514985
2015	29.075052025427773
2016	27.420415862629806
2017	32.036014280615156
2018	30.88844123275197
2019	31.61141121118701
2020	27.11497698307491
2021	30.26854058209897
2022	30.086908836773567