Year	% of GNI
2006	14.5724303468977
2007	14.8042830255755
2008	15.4881459910171
2009	16.2238717184444
2010	17.0585412928218
2011	18.0534058487821
2012	17.9475590311177
2013	18.0259510707427
2014	17.2156792054967
2015	16.703046379768
2016	16.3937937824845
2017	15.8544701147595
2018	15.4940177581875
2019	14.7981094135029
2020	16.0095752078687
2021	14.6568438614309