Year	% of GNI
1979	13.028429122618258
1980	12.093347590490865
1981	11.618049695850344
1982	12.426009143217476
1983	12.891881230870828
1984	12.611707399722839
1985	12.976938895047276
1986	10.308142455420786
1987	11.371367698397465
1988	11.822159647084352
1989	14.509195595504504
1990	11.006405411951704
1991	12.117081788339387
1992	12.539245916797418
1993	13.616004345689658
1994	14.230301880133295
1995	13.237535421088728
1996	13.578115029324803
1997	13.178650624288275
1998	12.188424465187394
1999	11.943891087532457
2000	12.438342259754219
2001	12.306914980941983
2002	13.793185674978616
2003	15.104709452779666
2004	17.186610851059328
2005	17.947017481778644
2006	19.723974455979125
2007	20.512410400504706
2008	21.076146061602095
2009	18.810957347821596
2010	19.5866941968957
2011	18.605295235604636
2012	17.831287745025172
2013	16.44168291164901
2014	16.385001182047453
2015	15.261235005806626
2016	14.799779251903516
2017	15.574804813155076
2018	15.375682572692533
2019	14.555355121857321
2020	14.029840784895047
2021	15.737759599474607