Year	% of GNI
1979	23.36760452237691
1980	23.002401811349
1981	22.569900295194525
1982	23.703115640612168
1983	24.142511058608104
1984	23.81970137858662
1985	24.320398270850003
1986	22.32014398473867
1987	23.27505999289949
1988	23.45508380134732
1989	26.120881159522472
1990	23.470988801326982
1991	23.335537779040752
1992	23.616554408340328
1993	24.96343728094403
1994	25.61862667294714
1995	24.935030526483505
1996	25.050205361556777
1997	25.03541642476816
1998	24.78395147239105
1999	24.687892702013468
2000	25.054311955887016
2001	25.48307611741434
2002	27.04139587532552
2003	28.483781889096495
2004	30.558964433504908
2005	31.27143714500046
2006	33.09035876139429
2007	33.97927523329589
2008	34.9987479852729
2009	33.834290735678195
2010	34.89924919283251
2011	34.69032324280419
2012	34.72121447129686
2013	33.96950142153212
2014	34.27891286819328
2015	33.66624568362154
2016	33.18477924833019
2017	33.82644564691803
2018	34.43679530525933
2019	33.94457286599965
2020	34.546474228442705
2021	36.32327352850073