Year	% of GNI
1970	28.7154338645954
1971	27.1152870783215
1972	27.88118261406
1973	31.3005357728263
1974	33.2623234811713
1975	27.5214808492079
1976	26.727963569913
1977	27.0333729059488
1978	27.5394877020697
1979	28.8592603463888
1980	31.3015317634845
1981	27.3701687148899
1982	24.199411732796
1983	23.2418140049233
1984	21.9687161378198
1985	22.1423723808997
1986	20.8369194557434
1987	18.9266879457654
1988	18.8523126698029
1989	19.5999346146662
1990	15.0432532514639
1991	15.2816359792659
1992	15.0672857569868
1993	16.1095585242997
1994	15.6177179470303
1995	17.0076205625269
1996	15.9721508278755
1997	15.1611272428134
1998	15.082602248249
1999	14.7252911080672
2000	15.4298132469162
2001	15.1787517812609
2002	18.3426025470323
2003	18.8260551100895
2004	17.2723474781149
2005	18.0061263569327
2006	18.4179075505223
2007	17.520850641858
2008	16.7988357648297
2009	17.7338524878517
2010	17.4830205909958
2011	16.4877994200343
2012	13.8442416624426
2013	14.1806569029996
2014	14.0297065725803
2015	14.6240142290096
2016	14.663644424957
2017	14.6498808470645
2018	13.6152426354715
2019	13.6244396943749
2020	14.4905980699162
2021	16.4998763453432