Year	% of GNI
1990	28.3178152116238
1991	28.7563863210689
1992	27.1306590988651
1993	26.9857652778015
1994	27.1757124992274
1995	25.474408298012
1996	23.253182417027
1997	22.2204250915512
1998	20.7278529940005
1999	19.4213084296423
2000	18.2053927389649
2001	16.0138009676232
2002	16.3950651542268
2003	18.031234339077
2004	20.80054030709
2005	19.0180402595688
2006	18.3694989315277
2007	19.2668396367063
2008	17.9409928986569
2009	16.8858559798767
2010	19.50338331283
2011	18.6897698671256
2012	18.1317482503591
2013	18.9880826371661
2014	19.2533950166575
2015	20.8011267339259
2016	20.8432688961772
2017	20.6455585885883
2018	19.1796942524511
2019	17.1052181947946
2020	17.784697338119
2021	17.8645237393349