Year	% of GNI
1975	13.1374069629928
1976	16.0062187115191
1977	15.4395580693179
1978	15.0791346550929
1979	15.7494857963197
1980	14.4917594032905
1981	15.8042213555587
1982	15.8580129296064
1983	15.4194203842576
1984	15.88526060665
1985	16.8831006858615
1986	15.8785305697856
1987	17.1063323830501
1988	18.3489490807281
1989	20.3812318364956
1990	21.4950729278071
1991	22.0961831028911
1992	23.6079613867557
1993	24.4198279353095
1994	26.2856694740963
1995	27.272422861844
1996	27.3040184641561
1997	27.7878883341836
1998	26.1100168286909
1999	25.8380670681764
2000	26.3994812712017
2001	26.4894838555275
2002	28.3009828034432
2003	30.6986120180928
2004	33.5682938822616
2005	34.6672904930141
2006	36.6467895989312
2007	37.1670196952721
2008	36.4718412393805
2009	35.8313096485738
2010	36.6991239513913
2011	35.4434731573709
2012	35.6802507265796
2013	34.7372165118439
2014	33.866485239927
2015	32.8348697905285
2016	31.4732326079073
2017	32.0533813020929
2018	31.7503859460806
2019	29.9862082298838
2020	28.9281247081424
2021	30.6913833768628