Year	% of GNI
1977	12.195252041780938
1978	11.355247954609478
1979	11.518609087291214
1980	17.28093172800105
1981	16.545190094393234
1982	14.959860416120524
1983	14.067760215152427
1984	13.778318755481475
1985	9.932138821596157
1986	12.099931758150783
1987	12.229822687925918
1988	14.1407834702811
1989	12.548034472867961
1990	12.547784851098147
1991	8.231021931226913
1992	8.286517580461908
1993	9.301615588841535
1994	10.191060481715658
1995	10.349511749572805
1996	10.634230080110752
1997	9.968360355522023
1998	9.895448798722871
1999	9.060309095138685
2000	10.777117755801347
2001	11.386829377793836
2002	13.762674483986036
2003	13.392975903377863
2004	12.800125662973953
2005	13.966699965888216
2006	16.361431147644414
2007	16.47033427730493
2008	15.209014967362567
2009	10.742643077219768
2010	12.521457792686453
2011	13.818057251837615
2012	15.24825628630171
2013	14.532510096067805
2014	13.476639221471833
2015	11.793739495442262
2016	11.296664369427537
2017	12.547562764662928
2018	12.425750486378542
2019	12.483945352150418
2020	7.52393941932589
2021	8.663383235395518