Year	% of GNI
1990	2.2803906312417497
1991	2.6125185059653306
1992	2.6665269511753285
1993	2.803936388115218
1994	2.6784215074060738
1995	2.610005140989225
1996	2.491716226359939
1997	2.528349290825946
1998	2.6894460224909427
1999	2.8216531424300872
2000	2.8422281695400726
2001	3.077384057885229
2002	3.289713512795238
2003	3.3413654236276003
2004	3.2989350968116713
2005	3.200576142649155
2006	3.077412026852585
2007	2.809000541901647
2008	2.509264589159716
2009	2.6747334327445524
2010	2.462435699292663
2011	2.3433479207583146
2012	2.3673151639444736
2013	2.408346336044112
2014	2.422194008626773
2015	2.562442061059243
2016	2.6398282826136383
2017	2.586395263043194
2018	2.6471937576365634
2019	2.7387768928156486
2020	2.8165012578687807
2021	2.659960718658518