Year	% of GNI
1979	21.07759526623676
1980	24.120383464827714
1981	23.585576177610264
1982	22.80022997216951
1983	22.395004514857387
1984	21.372255273946354
1985	24.141341988204246
1986	18.744611431198685
1987	20.530647877028336
1989	26.897773566326244
1990	19.137538733448093
1991	17.897975131685918
1992	17.41084132465451
1993	18.822421613239833
1994	18.76849913334746
1995	16.97275729037818
1996	16.852626058402503
1997	16.942048338978772
1998	17.36264342238914
1999	17.442068234244978
2000	17.3840352981334
2001	17.398652006143625
2002	18.742496034687306
2003	18.754177125075792
2004	19.904019434008408
2005	19.072142800857662
2006	20.83761216217142
2007	21.060170420582665
2008	20.441412007298204
2009	18.530526081421016
2010	18.92740287976585
2011	19.388297469493867
2012	18.685752674911917
2013	18.031041875226375
2014	17.236304305412663
2015	16.70051442564816
2016	16.61009657905974
2017	16.701058535176884
2018	16.66126322886886
2019	16.853393642458084
2020	18.17245465052332
2021	19.640341699548557
2022	18.202584010093418
2023	17.694347755109945