Year	% of GNI
1976	34.0383940470118
1977	32.762627840381
1978	30.3709905513037
1979	25.4461752656833
1980	23.1919421674957
1981	20.3549315076925
1982	19.531707885895
1983	19.6541570640908
1984	18.5845262730536
1985	18.6889360303565
1986	15.4828490506947
1987	15.9386012226418
1988	18.410053657159
1989	14.8758589776361
1990	16.7796436464598
1991	13.9942999702469
1992	13.9105200293942
1993	16.4589610718344
1994	15.8763404426322
1995	16.8159013272578
1996	17.4835419835293
1997	17.0257625640378
1998	16.5394780825706
1999	14.0312889140363
2000	14.7604401633969
2001	14.6349221695948
2002	22.4844277033786
2003	22.6459704750227
2004	15.5057969262885
2005	15.4661208344062
2006	22.1466790602906
2007	22.8298235396866
2008	21.6625917465831
2009	18.9022195572135
2010	17.9432661836076
2011	17.8432311123855
2012	16.6024808058107
2013	15.5274874483463
2014	16.2419215544016
2015	14.5787445031001
2016	14.9515917433589
2017	13.4111539778791
2018	11.8154986312032
2019	14.2505602710508
2020	17.4729809527572
2021	21.9951323120705
