Year	% of GNI
1996	21.3837434341786
1997	22.1502658208036
1998	23.8860819190786
1999	27.3674140960496
2000	31.7019540276441
2001	31.7264129839635
2002	33.0649721281989
2003	32.0021198050483
2004	34.1053329078253
2005	33.6935717632871
2006	34.062672935389
2007	32.7588701285519
2008	28.756065174328
2009	28.7407359960629
2010	34.5067852425165
2011	36.7964560051551
2012	36.0118927044848
2013	34.3816939665804
2014	34.2908602439889
2015	29.5736934188697
2016	30.1267230339852
2017	30.7123022324444
2018	32.5945457641151
2019	32.9904054518771
2020	34.4813623422936
2021	34.4150792623955