Year	% of GNI
1995	23.7157438844969
1996	22.2398116822045
1997	25.2585676839001
1998	24.772314829408
1999	24.8320745296482
2000	24.7909254348233
2001	23.9411721039914
2002	24.0285525683373
2003	21.8617442824044
2004	22.0259593368458
2005	24.193187182541
2006	23.6614090890405
2007	25.8190730629197
2008	24.2451200086626
2009	18.377873517387
2010	21.7172082398214
2011	22.638632779994
2012	23.5435650500456
2013	23.9368476039084
2014	24.044111793257
2015	24.2585395566554
2016	22.4493962463869
2017	22.2429742020592
2018	22.815969016712
2019	21.0450880578504
2020	19.8483557998929
2021	19.2819637152013