Year	% of GNI
1990	13.3720966118523
1991	12.875688004848
1992	12.4453683455502
1993	11.8948998643544
1994	13.1484321415315
1995	14.2166750681375
1996	14.8261902938966
1997	15.848468248846
1998	14.2343264807129
1999	14.8670864503185
2000	14.8081322958176
2001	12.7210088140341
2002	11.0640481417338
2003	11.9400511775413
2004	12.3828065762389
2005	13.0624877535608
2006	14.2840180741616
2007	14.7433093076897
2008	12.1644138294754
2009	10.2433741984881
2010	12.5474724638914
2011	13.5029482159042
2012	12.9288077986434
2013	12.2308874600211
2014	13.0530925185445
2015	14.6838975968331
2016	15.2335950063532
2017	16.8999162080922
2018	17.6428811604099
2019	16.6657125867032
2020	13.6364363297938
2021	15.4948660973532