Year	% of GNI
1981	8.153037567713978
1982	10.066677108095565
1983	10.45186116549607
1984	10.541657562529819
1985	11.28742903986355
1986	10.639143763824555
1987	10.549182699764796
1988	11.2474426395492
1989	14.596918045201454
1990	6.965985345623027
1991	9.408895966003215
1992	10.158849275430526
1993	11.568571424333392
1994	12.68868477139226
1995	11.348147757512761
1996	11.90293592490287
1997	11.905462145298609
1998	11.10789197828516
1999	9.569681298336176
2000	9.135633494669879
2001	9.190706357743286
2002	10.548628447585596
2003	11.626833383751318
2004	12.814398804739639
2005	13.06977076095211
2006	14.757148919573694
2007	16.061944815895366
2008	16.089718999300807
2009	16.417967907957426
2010	16.241469615843336
2011	14.486249362645
2012	14.743446088612815
2013	14.015042188951085
2014	14.239334050616009
2015	14.056189891946403
2016	13.58432198895307
2017	14.069016088303213
2018	13.267014709765999
2019	12.397804033387253
2020	12.24279135774134
2021	13.310706802353355