Year	% of GNI
1980	28.0705276011725
1981	22.6979322858216
1982	19.8238985731333
1983	14.9850296643777
1984	18.4217060082426
1985	19.394520670471
1986	24.2637508063513
1987	16.7205892504921
1988	17.0563197391974
1989	9.01472867172084
1990	6.2104001285204
1991	7.69347244378148
1992	10.915621716386
1993	14.8509696985904
1994	16.5567289201884
1995	18.2862578779248
1996	24.9118046132972
1997	24.1100255134838
1998	27.9079864779539
1999	33.2682098506814
2000	32.1232804887622
2001	31.986013675329
2002	36.3655418876212
2003	36.9861305122992
2004	38.7970081656392
2005	13.0861678734069
2006	6.42820039068783
2007	12.7604869753115
2008	8.64105024287889
2009	13.4809603318722
2010	14.7966609539314
2011	16.2978849237582
2012	16.4361084901227
2013	18.3170349422452
2014	23.4703292547134
2015	24.312433676622
2016	21.1947720226624
2017	19.8273143898324
2018	19.6885617310433
2019	17.3255547152695
2020	16.4130041214034