Year	% of GNI
1976	11.9911185347241
1977	13.794752866369
1978	13.5261146532312
1979	12.3526135636768
1980	12.6553729491082
1981	12.2527356302328
1982	11.8348463332247
1983	9.8661097950063
1984	11.4748092595444
1985	14.28231171065
1986	11.3037229198185
1987	12.7840494034735
1988	12.6549227921248
1989	11.4026949305014
1990	8.30936879394441
1991	9.75851779256418
1992	12.9646525238141
1993	14.4199055208406
1994	11.8169594529173
1995	18.4778593373635
1996	18.5908300128364
1997	17.1025209555724
1998	17.7754326397033
1999	17.3571863914946
2000	18.331988493223
2001	14.7229370521051
2002	21.555755086077
2003	22.2092638284191
2004	23.9010653646032
2005	26.4682820492395
2006	24.9230635986103
2007	26.141564083569
2008	31.7904105193073
2009	32.3643816503371
2010	32.6010945392392
2011	24.1970889422246
2012	29.3569323212568
2013	31.8640888345219
2014	34.1958084383986
2015	34.1557724742096
2016	28.678389338711
2017	35.9901403549739
2018	36.3104626053288
2019	35.2469536738454
2020	25.8298484047754
2021	25.7447501676079