Year	% of GNI
1975	5.475486902882639
1976	6.5502762739647755
1977	7.628463495803105
1978	7.021060714053429
1979	7.082481472277581
1980	6.657477274675227
1981	8.584363418661306
1982	8.525776145255488
1983	8.426483931333642
1984	7.913320209824093
1985	8.376130714096659
1986	7.980116311585915
1987	8.816378870128169
1988	9.606302116345429
1989	11.111783653448772
1990	12.123897164723543
1991	12.493543518948531
1992	13.563897403546681
1993	13.667441542388596
1994	15.744941414248075
1995	16.186371508260727
1996	16.291387929080837
1997	16.705316101530375
1998	15.88076956935486
1999	15.652807558955327
2000	15.765437177861136
2001	16.059129240360523
2002	17.76555473422892
2003	19.71753334287629
2004	21.8704411877013
2005	22.5536472585365
2006	24.074073980900536
2007	24.74358383633694
2008	23.128430920680238
2009	23.630055585156313
2010	25.11083335874224
2011	23.6858458661859
2012	23.652557944941528
2013	22.975995814878935
2014	22.24714254811383
2015	21.60430893713804
2016	20.705452456876138
2017	21.10590969449634
2018	20.60445057066363
2019	20.005318971540667
2020	18.806289144267822
2021	19.5544959646667