Year	% of GNI
1981	30.89638711399613
1982	28.802776695259823
1983	31.333990383227395
1984	24.79348511915434
1985	18.92175913691264
1986	19.239351867576755
1987	22.53706093445788
1988	23.280711468098144
1989	22.875200622096088
1990	22.77521726750839
1991	21.07869214155484
1992	20.511142163477242
1993	20.052600881008168
1994	21.867926851263736
1995	21.34750154706792
1996	21.655825609222536
1997	22.77916153885426
1998	25.99092205159838
1999	31.724145068984296
2000	30.51478024827015
2001	31.59796279259087
2002	32.19910262855448
2003	32.546938402674364
2004	33.13813121973957
2005	34.412842606909976
2006	34.09245505556385
2007	33.725479677457734
2008	32.936813300957176
2009	34.01988833588319
2010	35.7413828333327
2011	33.28290427904595
2012	31.64120960219287
2013	32.5291755589415
2014	33.48818144015276
2015	31.980112659685382
2016	31.55083928872313
2017	31.96252882092297
2018	30.5502450997456
2019	28.86511069587607
2020	23.06986605172483
2021	19.509030804174667
2022	21.22645382008088
2023	24.612982667363372