Year	% of GNI
1971	14.311920729755588
1972	14.288400006320018
1973	15.221411929216881
1974	12.9121736439684
1975	11.584968982908771
1976	12.332240694278308
1977	12.273311584464919
1978	13.078869903535184
1979	11.91620896867397
1980	10.052665247479489
1981	10.204647649671815
1982	9.29565065833292
1983	8.5127324978693
1984	10.454819856685702
1985	9.664780841069899
1986	8.726242471787137
1987	9.553688628927759
1988	9.79726133307395
1989	9.437839915920671
1990	8.101751042472031
1991	7.423287025645131
1992	6.747350897001759
1993	6.065890413334489
1994	7.12441964680821
1995	8.075673677055722
1996	10.783463592300127
1997	11.241964344221136
1998	10.838636056176561
1999	9.993798756592822
2000	9.763156048359054
2001	8.884006533664776
2002	8.123241236025248
2003	7.899504452475575
2004	8.539112924920826
2005	8.477578043851178
2006	9.249810193172433
2007	8.853631593056205
2008	6.817135901535256
2009	4.642554896891847
2010	6.18190609575583
2011	6.767614388308627
2012	7.186616995586613
2013	7.8337729755577685
2014	8.530803110453048
2015	8.687813990639343
2016	8.257240611187276
2017	8.934557225671385
2018	8.829844245293527
2019	8.787804378700308
2020	7.431972863719848
2021	7.591365931069803