Year	% of GNI
1968	17.18285534998521
1969	16.283518233820384
1970	17.46473129777162
1971	13.869889617465697
1972	17.094811914288247
1973	19.209822817507348
1974	19.5701705547757
1975	17.128534025081805
1976	19.168210671951403
1977	21.37270511008903
1978	20.257051085935732
1979	19.44777217538994
1980	19.59311411030385
1981	16.612514675150074
1982	14.519420030555432
1983	14.865204367376748
1984	15.696407924058859
1985	17.693616031041238
1986	23.25224527527223
1987	22.545723615412154
1988	23.472091468508623
1989	21.888688241721738
1990	21.937906976298265
1991	23.95466595984568
1992	19.852395384492972
1993	18.445493728166152
1994	19.456343725455103
1995	18.832047376147724
1996	15.437052774104416
1997	13.799129803477536
1998	13.099089364951531
1999	13.75564440719351
2000	13.87453715424786
2001	13.159397800621196
2002	14.309835059280323
2003	15.940948813305152
2004	17.43353893082531
2005	18.907156632789217
2006	19.529822023748125
2007	19.231288392342183
2008	20.268178999132452
2009	19.241715438170612
2010	19.120597306858077
2011	20.202243312668656
2012	19.101833326592928
2013	18.841323448926975
2014	18.687091544771537
2015	17.599225938593637
2016	17.673315375344743
2017	17.400026222627105
2018	16.781017512783034
2019	16.539889236514096
2020	14.573021719169123
2021	13.268801528277788
2022	13.839720979211586
2023	10.858758794288791