Year	% of GNI
1975	25.282505878467
1976	22.7602515940826
1977	23.2152673420118
1978	23.8438161054549
1979	22.8072394416206
1980	20.7489080223242
1981	18.8270329572073
1982	18.9169418513273
1983	18.7916575653634
1984	20.4987770297533
1985	21.1616607542215
1986	22.0701890023678
1987	21.962764897499
1988	23.1608788548714
1989	22.5420394739305
1990	22.0534492949177
1991	21.4336201655835
1992	19.5787076975587
1993	19.3444643227152
1994	19.1061833121042
1995	21.4904078058815
1996	21.2999677877016
1997	22.3332295617766
1998	22.994543327063
1999	22.4927283193708
2000	22.4899857008583
2001	22.3915662506717
2002	23.2272583808597
2003	23.8246054953915
2004	23.0225292652754
2005	22.4327959470099
2006	22.1249384276505
2007	21.542483603219
2008	20.1190244301669
2009	19.5994803613673
2010	18.9190487644143
2011	18.1762416235015
2012	18.6662753541577
2013	19.383007756001
2014	19.6498327337754
2015	21.0128099599846
2016	21.8659032423265
2017	22.1676996334753
2018	22.3142202160855
2019	22.8939748030574
2020	20.9560833180194
2021	21.6770917659205