Year	% of GNI
1994	8.502115089503011
1995	6.865194272706149
1996	8.872027268467377
1997	8.79633381782789
1998	8.91656822616587
1999	9.391816838438187
2000	9.798859258604422
2001	10.678134380712352
2002	11.715119939577576
2003	13.450614198505571
2004	15.15110096911993
2005	14.830946744196389
2006	16.167361497629148
2007	17.5151479782788
2008	16.920699183364516
2009	16.16904936674524
2010	16.742688943169245
2011	15.312500682191589
2012	15.558382294714198
2013	14.781734088657426
2014	14.859767599438552
2015	14.62823010770246
2016	13.80737559567858
2017	14.380189979141607
2018	13.798696678127207
2019	12.789431724074593
2020	12.929791782025099
2021	13.366863538903567