Year	% of GNI
1973	3.746199114942496
1974	4.718187330386136
1975	5.111799654154221
1976	4.78366764981144
1977	5.449706062667106
1978	6.128768387236219
1979	6.850352123573182
1980	7.143178411544138
1981	6.430375654636045
1982	6.7579662993865615
1983	6.23616385384585
1984	6.156884549456372
1985	6.286047348367438
1986	8.822230585201101
1987	9.617942911207528
1988	9.272105182897784
1989	8.712170444606326
1990	8.981075179398697
1991	8.277383700534763
1992	10.583801683389401
1993	9.075634817232585
1994	9.979458933913026
1995	9.833343333959743
1996	7.574347226921215
1997	6.733013159393302
1998	6.4321013830051275
1999	6.167809295405385
2000	5.49160250526894
2001	6.496056379209126
2002	7.521978744576313
2003	9.13859189065107
2004	8.495961440314174
2005	7.311315000580573
2006	7.018921623424943
2007	7.029986792963448
2008	6.468298501388254
2009	6.6008633482680406
2010	6.465257701685745
2011	5.77580618021827
2012	5.307936745576736
2013	5.427957685041529
2014	4.628484877534176
2015	4.721466809514451
2016	4.634249248690783
2017	4.797864194222777
2018	4.997671539403234
2019	4.6316658446378
2020	5.5644741517077945
2021	4.805239401560331