Year	% of GNI
1977	9.398218749633237
1978	9.500034075110163
1979	9.363065093391684
1980	12.64704666043508
1981	10.468883498891033
1982	7.509657087496727
1983	6.855855491370031
1984	6.624472157147542
1986	5.247297526369628
1987	3.7789654207232104
1988	4.1829552090427295
1989	4.58946133799663
1990	1.9561086913252232
1991	1.2404547259612446
1992	2.2079586742479034
1993	3.9657969980169447
1994	4.296563357602448
1995	4.82486039478427
1996	4.20290489290082
1997	4.065509634153138
1998	3.959390206139858
1999	3.4295348756143973
2000	5.664016764207423
2001	5.144831887381171
2002	7.477808554667607
2003	8.080413324900311
2004	8.389671005673327
2005	8.14458632193204
2006	9.098192298198981
2007	8.97526238274829
2008	13.938411934140442
2009	9.353710891631394
2010	9.851145902535642
2011	10.038882425570781
2012	11.842349960708773
2013	7.846696736449335
2014	10.402307725637336
2015	7.355436879143998
2016	7.061917682983452
2017	8.327896250796362
2018	8.521137338673219
2019	9.861330699205517
2020	11.53611505217858
2021	13.237023451278313