Year	% of GNI
1981	87.9330766248629
1982	85.1293042970942
1983	76.2028221250174
1984	61.4055861503506
1985	49.1347902348597
1986	54.8901660923651
1987	54.0534195735598
1988	48.4883624543331
1989	67.5572234621513
1990	62.3567400701951
1991	59.3607070598398
1992	52.1217933929441
1993	49.5650878224833
1994	43.6770390051176
1995	43.7523895427897
1996	40.3933847911015
1997	43.0509433985944
1998	35.0832630533884
1999	47.4213152859301
2000	55.5698767095503
2001	36.0560137268353
2002	31.1043125908772
2003	29.4022304020246
2004	32.5020994869492
2005	39.1855145803645
2006	50.90392719988
2007	28.0154093374565
2008	33.5017092359787
2009	26.202951993291
2010	25.7011241315035
2011	25.4117647919403
2012	33.5033121669779
2013	19.0445330797449
2014	21.7867152714006
2015	16.2475949078474
2016	16.1888588468644
2017	18.8314343107715