Year	% of GNI
1989	11.355161001552469
1990	9.603979509259098
1991	7.680326852977089
1994	13.836428317835413
1995	12.714826552442258
1996	12.934711689469648
1997	13.783161437230659
1998	15.186782093028274
1999	14.08688096876931
2001	15.743028503123217
2005	14.496647082518631
2006	16.08243190612395
2007	15.553256726764378
2008	16.478312494927778
2009	15.930653541428146
2010	17.33066434217449
2011	17.81799334134012
2012	18.63409244109989
2013	19.102439008209313
2014	23.304688331311958
2015	21.690921855891915
2016	21.6626247179006
2017	23.059993310794738
2018	22.526581204975994
2019	22.680037252437902
2020	23.148262542215303