Year	% of GNI
1990	15.3879296086367
1991	12.2148981180305
1992	28.8656582660213
1993	23.0599923207049
1994	22.1033953953351
1995	21.0586248335068
1996	20.5157170670949
1997	19.4125707618991
1998	18.5192393280778
1999	18.3427288341249
2000	18.1181426153028
2001	18.6042612839548
2002	19.10131156533
2003	20.7287622260493
2004	20.7280359900889
2005	20.3499612271272
2006	19.0264017595799
2007	22.2227662599506
2008	20.4974079046131
2009	20.4131841851206
2010	20.5622645192115
2011	19.3115393216168
2012	19.8622610693133
2013	18.6139084501084
2014	18.4089750458021
2015	17.9198489093392
2016	17.492379621615
2017	16.2935259371914
2018	17.0803902014185
2019	17.4428589059829
2020	16.8904486642327
2021	16.6023767441264