Year	% of GNI
1975	20.5611575547406
1976	20.5098379233243
1977	21.9532707132512
1978	23.9063461373993
1979	22.2540632442974
1980	22.2759964403229
1981	21.1877295882008
1982	22.6513833032792
1983	22.1527581122401
1984	22.702627992879
1985	23.3995741884748
1986	24.890366250168
1987	27.7872163824486
1988	32.5264769671691
1989	34.4888365856053
1990	33.3131799687077
1991	35.0682039417981
1992	34.6756883877572
1993	36.5546925327697
1994	36.452594347122
1995	36.5085439626139
1996	35.4974687925966
1997	33.245211018491
1998	33.0255266175949
1999	31.4185025139401
2000	31.4012403638025
2001	29.0375671281684
2002	29.1278944701184
2003	29.1659189469332
2004	29.1667164399928
2005	29.5667624938832
2006	31.6207134995555
2007	33.3860526704694
2008	31.8225972558106
2009	30.3371490937752
2010	30.9230000924447
2011	32.2108496521088
2012	30.3205651397503
2013	29.0794184391942
2014	28.9758834845425
2015	29.5691826461148
2016	31.5589499714221
2017	33.4405128333684
2018	33.2876987930306
2019	32.8881865731147
2020	28.6433122967121
2021	28.7862477361493