Year	% of GNI
1977	27.67462458275926
1978	29.80892414453591
1979	27.036247609402537
1980	24.904571229233355
1981	20.921155685811108
1982	29.651171962136846
1983	25.41339671350193
1984	13.12610355841784
1985	15.95199330530743
1986	15.390119967706607
1987	22.660489459187104
1988	16.128325118264623
1989	2.4463728314183237
1990	16.50036327193668
1991	12.556583959819191
1992	17.997422100583254
1993	20.5253618536287
1994	23.575755274275817
1995	23.490733119265283
1996	25.626953089677958
1997	26.957137754966073
1998	21.215947309406904
1999	19.483631837681116
2000	22.948456285659425
2001	20.552493271148194
2002	19.073777836245128
2003	19.030020858217668
2004	16.158685464442506
2005	18.528639357205332
2006	21.380614851325685
2007	28.144761406828273
2008	29.71310166813365
2009	28.739492487867178
2010	24.568877019207306
2011	29.06309993734542
2012	31.586312883863076
2013	32.51756967496517
2014	30.079344242257733
2015	33.767849520617304
2016	31.99890787789958
2017	33.64311105810651
2018	35.449559900449856
2019	33.26239447365713
2020	26.460973221997477
2021	32.4095021230606
2022	38.682078533860256