Year	% of GNI
1974	32.279472673134
1975	32.9981165484827
1976	34.313482334074
1977	32.1176617709174
1978	31.1619531923857
1979	34.0843636470143
1980	29.3005387510997
1981	33.1860887948645
1982	32.6063335461851
1983	29.5130874706893
1984	30.1550317910985
1985	35.645995354926
1986	39.3771601204821
1987	24.7645318918287
1988	29.23501130332
1989	26.6552522811249
1990	22.0581190487479
1991	18.908433081737
1992	18.6735599439018
1993	18.8043864821813
1994	18.6559583543755
1995	19.9834194912698
1996	22.1578723929779
1997	20.8234185441743
1998	26.0123428907651
1999	22.1252970540423
2000	21.7208269484042
2001	22.066985913595
2002	22.8864008601613
2003	21.0251014581749
2004	22.6169957525034
2005	23.8937825160964
2006	24.8942262788174
2007	24.1346359792043
2008	24.8657198272514
2009	22.2116509471234
2010	21.9819559805091
2011	23.2280191076473
2012	23.5566690535601
2013	24.1288431414507
2014	25.1195362025071
2015	25.4994260034431
2016	25.2467050736952
2017	26.3479526600554
2018	28.1227522548563
2019	26.4657842752915
2020	27.1336340321286
2021	30.7614419185964