Year	% of GNI
1977	20.67256340765305
1978	21.022510134913766
1979	21.135958552883977
1980	24.11888948595642
1981	21.722471561121722
1982	19.19124717725042
1983	19.08946397140267
1984	18.474983641539136
1986	17.183556156160048
1987	16.046741431105694
1988	16.364101078738123
1989	16.604502728843247
1990	13.722056072543143
1991	12.768655000978324
1992	14.491570180062068
1993	15.884216965795947
1994	16.405637906146808
1995	16.729748719699707
1996	16.14124394095823
1997	15.90690408186953
1998	15.931066932325452
1999	15.526673778518605
2000	17.85089481709129
2001	17.00534929321278
2002	19.067265974784622
2003	19.78842451405951
2004	19.802957057146692
2005	19.2390340054006
2006	20.147692798810834
2007	19.971291760253067
2008	24.1164951976055
2009	19.833096807599173
2010	20.819534786211065
2011	21.229423956344316
2012	23.20035305676479
2013	19.053361730983003
2014	21.399366289862666
2015	18.426853559583115
2016	18.075189393630872
2017	19.329051692354728
2018	19.426045896256735
2019	20.852956911755047
2020	22.869894610993803
2021	24.104875710085075