Year	% of GNI
1978	19.2780954446929
1979	19.1542349214821
1980	8.3950535309224
1981	17.0962389278176
1982	15.21072796172
1983	11.5767896714636
1984	10.8292512963702
1985	10.6214138569172
1986	13.2384539890062
1987	13.2899189271625
1988	15.8838640298464
1989	14.2268586754141
1990	14.6193475851589
1991	16.3510808077784
1992	14.9004436944683
1993	14.1735131642935
1994	13.9125927838838
1995	14.3489265981273
1996	14.2665117955706
1997	13.6736954694591
1998	14.0591891824972
1999	12.0254639194542
2000	11.001662948811
2001	11.4813602105211
2002	15.2974054104013
2003	15.5593487163318
2004	17.4779970066563
2005	18.0996190723774
2006	16.8754355962396
2007	17.2526238811526
2008	16.3982293029759
2009	18.1819900146271
2010	17.6715111044316
2011	18.0179154481791
2012	13.4302537630496
2013	15.024259990976
2014	13.6880245582905
2015	15.5815023924323
2016	19.1540804489597
2017	16.8481546480035
2018	15.3035852202616
2019	16.8213294860654
2020	17.4260410757271
2021	17.8714176064947