Year	% of GNI
1978	8.66860487259552
1979	19.416476356187
1980	28.8547362143393
1981	26.5407030646909
1982	41.9365311248996
1983	39.4003418777465
1984	42.9742033070893
1985	26.5544036747719
1986	18.0406978952745
1987	24.5850542639518
1988	6.20975823663956
1989	17.2094278319306
1990	38.2714525051367
1991	21.0180559962669
1992	37.1121289917209
1993	26.3340400564892
1994	33.6557583902195
1995	-3.96527157070625
1996	-0.365364282806681
1997	12.9686558204873
1998	7.94283899723492
1999	25.3029356019092
2000	51.191785610538
2001	31.2771254820142
2002	32.7230922418732
2003	41.6835096045676
2004	25.0613709409956
2005	43.110879407319
2006	49.5857178065926
2007	39.7415762382235
2008	49.6026275027723
2009	43.6092087922853
2010	58.1429322945012
2011	55.6560933627025
2012	60.7877763688553
2013	59.2063383854998
2014	56.5509802517049
2015	40.6821036548955
2016	25.3492904035596
2019	38.9794707882046
2020	19.1476165551548