Year	% of GNI
1990	27.9693397915325
1991	28.4387980566031
1992	26.8334094050678
1993	26.7132819968622
1994	26.9229031711452
1995	25.2396156424604
1996	23.0289719127239
1997	22.0010044107252
1998	20.4991833935885
1999	19.2143907725771
2000	18.0173401698397
2001	15.8360042272324
2002	16.2267124391465
2003	17.8704796235297
2004	20.6437457477614
2005	18.8677203810447
2006	18.2261366080237
2007	19.1276829310927
2008	17.8057508794484
2009	16.7493993362393
2010	19.3756636880719
2011	18.5646894293043
2012	18.0047168928903
2013	18.8579713243309
2014	19.1220558404856
2015	20.6700569728182
2016	20.7168244617915
2017	20.5173014225293
2018	19.0473553921731
2019	16.9661997474178
2020	17.636380860062
2021	17.7138740596152