Year	% of GNI
1993	18.7125422484227
1994	18.6707883837893
1995	20.4520926022628
1996	21.1414492110282
1997	20.6632318241914
1998	20.1264185276173
1999	20.7217156709112
2000	20.2275160609658
2001	19.27106306625
2002	17.9136227212355
2003	17.3875483626947
2004	16.8327280993562
2005	16.7066337279913
2006	16.9564612618883
2007	17.3485674051353
2008	17.3269763925519
2009	18.6600014645265
2010	18.8200109303583
2011	18.7684607839587
2012	19.0355787191462
2013	18.3282806287486
2014	17.7773754611433
2015	17.384211022347
2016	17.0087813692394
2017	16.8825985131201
2018	16.4106140469667
2019	16.2500484052869
2020	17.8489132780372
2021	18.0928032637204