Year	% of GNI
1970	2.58893261793526
1971	0.975772819282232
1972	3.23324718177242
1973	4.34681551703274
1974	39.4246408083584
1975	29.6513897956828
1976	21.0247967395382
1977	26.4525476049289
1978	27.855262874329
1979	55.2494830260613
1980	32.1359439903178
1981	17.1285582019681
1982	7.11974030658188
1983	15.5446425493121
1984	18.0730645353229
1985	21.2569225708507
1986	6.87333085290232
1987	12.8913740342515
1988	9.47770035124019
1989	20.8778295982704
1990	29.5705102657139
1991	19.5313867248152
1992	23.7840769256787
1993	30.5366339212113
1994	24.5491063629917
1995	26.3166559306892
1996	23.8380062885337
1997	24.9654103817633
1998	12.5135981301863
1999	17.2414767924121
2000	35.8912092238272
2001	21.7449957225184
2002	19.6559439917059
2003	15.5276389815994
2004	19.5511719375691
2005	26.4206895849887
2006	25.3213394214441
2007	27.2921473454249
2008	29.0813188593032
2009	19.1967255979002
2010	27.3437920617629
2011	30.2177311824251
2012	29.6584997598035
2013	22.4892893167121
2014	15.5191839239661
2015	7.34585696311239
2016	6.47154532807568
2017	9.80175807469911
2018	12.1309122681805
2019	11.5255687023098
2020	6.62136595360492
2021	11.2745159019725