Year	% of GNI
1977	20.672563407653055
1978	21.02251013491377
1979	21.135958552883974
1980	24.118889485956426
1981	21.722471561121722
1982	19.191247177250418
1983	19.08946397140268
1984	18.47498364153913
1986	17.183556156160044
1987	16.046741431105687
1988	16.364101078738116
1989	16.604502728843254
1990	13.722056072543142
1991	12.768655000978328
1992	14.49157018006206
1993	15.884216965795948
1994	16.405637906146808
1995	16.729748719699703
1996	16.14124394095823
1997	15.906904081869534
1998	15.93106693232545
1999	15.526673778518605
2000	17.85089481709129
2001	17.005349293212774
2002	19.06726597478462
2003	19.788424514059503
2004	19.802957057146696
2005	19.2390340054006
2006	20.147692798810834
2007	19.971291760253077
2008	24.116495197605495
2009	19.83309680759918
2010	20.819534786211058
2011	21.22942395634431
2012	23.200353056764786
2013	19.053361730982996
2014	21.399366289862666
2015	18.426853559583122
2016	18.075189393630872
2017	19.329051692354728
2018	19.426045896256735
2019	20.852956911755044
2020	22.869894610993807
2021	24.10487571008507