Year	% of GNI
1976	8.619896422620052
1977	12.619804199385586
1978	15.773935059014576
1979	17.340593764522172
1980	13.595418287251315
1981	12.071193185240904
1982	10.854994287885397
1983	14.630991223488088
1984	13.286040430257419
1985	15.084727835475174
1986	17.70295673361391
1987	18.157786088819485
1988	26.679877418147157
1989	23.116100819673893
1990	21.00920022245041
1991	20.6080852811309
1992	28.438926423669535
1993	35.428343339241884
1994	27.71205991524434
1995	25.170491782230044
1996	24.46816025270354
1997	22.63817421685898
1998	19.309206714206237
1999	19.371824343398185
2000	17.437242834400603
2001	18.229045369396857
2002	17.03078006453776
2003	19.026848319161587
2004	21.984675554887595
2005	15.986702545269331
2006	18.384987876425637
2007	16.40017706955542
2008	6.463735629878273
2009	13.707958973841793
2010	13.940749453730193
2011	8.903403038798801
2012	11.156067492414907
2013	12.227051168960632
2014	14.490152911304072
2015	18.81493483325378
2016	22.14258062530428
2017	22.19159400643058
2018	23.137104394232985
2019	23.3576742274297