Year	% of GNI
1970	38.1761302945031
1971	36.13702160492
1972	37.7216428653149
1973	56.7553329308938
1974	53.014260937219
1975	48.9083887846074
1976	45.0560111071438
1977	39.7080514652692
1978	35.7223232180565
1979	55.7754350244762
1980	38.233613596432
1981	31.7452651804173
1982	23.9284263281628
1983	27.8138411396451
1984	25.8818009381116
1985	28.2650848044503
1986	22.1285342380001
1987	29.898818826843
1988	25.8379781253518
1989	33.519812254607
1990	38.0095855184619
1991	24.4639759623263
1992	24.4868766688806
1993	24.1704158082317
1994	22.2876354986425
1995	24.077127677995
1996	28.393136839021
1997	25.1773977482251
1998	18.0166542780712
1999	24.2551678388195
2000	35.3292777698972
2001	29.6909455845027
2002	27.3188479302613
2003	25.9889936826486
2004	27.9803666665547
2005	33.247675436676
2006	31.1469027585992
2007	28.5586853279978
2008	29.5035119877833
2009	25.583995648424
2010	27.0629947348181
2011	33.4140225261966
2012	31.6029841736133
2013	30.8537490125171
2014	27.6884954197782
2015	16.5373046097106
2016	14.2225145970067
2017	16.9261767595748
2018	21.8635907423169
2019	20.1755256899817
2020	15.3559384145671
2021	23.9732239927888