Year	% of GNI
1990	14.4585200563488
1991	16.4639132668016
1992	15.5549829464715
1993	15.1199426887928
1994	15.0039431011609
1995	14.9625765900654
1996	15.3662388324897
1997	14.8594185146142
1998	15.0501546751177
1999	11.9920242919708
2000	10.458771645891
2001	10.6425999679248
2002	13.5394867109696
2003	13.4534431462194
2004	15.9108261635569
2005	17.4933567747077
2006	16.460428149626
2007	17.5480475862677
2008	16.8600149266185
2009	18.0276380559166
2010	17.8991020691805
2011	17.8058496750292
2012	11.9843491846224
2013	13.4919294477722
2014	12.0834275761438
2015	13.690275619669
2016	16.572625880228
2017	14.3712841634203
2018	12.1417263385018
2019	13.838201144458
2020	13.9795723410772
2021	13.9123147436779