Year	% of GNI
1995	21.3912671610338
1996	20.7849721683512
1997	20.5059404328304
1998	21.4289418542177
1999	20.3213108285251
2000	18.5019187073023
2001	17.2828976444253
2002	15.5695048873857
2003	16.3914764465548
2004	14.8536721455872
2005	17.0116892439552
2006	17.4195716871992
2007	18.8666755083534
2008	17.9209242810882
2009	16.6804570552216
2010	15.7821965638891
2011	17.6155301911141
2012	17.0622170684244
2013	17.3731473381253
2014	18.160164694921
2015	19.8634843033086
2016	19.7711315815622
2017	19.4032124030877
2018	19.8236834345672
2019	20.5479765825434
2020	21.112293376128
2021	20.438480673589