Year	% of GNI
1980	54.78797698753768
1981	54.9157520550136
1982	50.3037102138364
1983	48.821524921228566
1984	43.58218717136746
1985	38.171650863116945
1986	26.21193910256411
1987	28.1782606692348
1988	35.17886178861789
1989	26.267840874582447
1990	34.37892095357591
1991	14.91480416021243
1992	11.95440644981929
1993	11.963450728065101
1994	17.32095051172728
1995	18.82900606369516
1996	18.685042119440524
1997	17.620906857657253
1998	9.08900886642651
1999	7.668859040885243
2000	26.384273284655716
2001	18.917684685471187
2002	24.149231993175867
2003	26.737669337801716
2004	25.20724373446813
2005	36.919705493194364
2006	43.1052781546399
2007	48.759210213132675
2008	45.35558640129648
2009	31.92613901588994
2010	33.35321345173739
2011	30.92518554749803
2012	37.7674554850156
2013	34.618053119884294
2014	33.02159149711057
2015	24.996790155732437
2016	26.417596819641325
2017	30.57037989583822
2018	30.499367229956093
2019	32.48203790340229
2020	27.688336280430388
2021	34.38376699426972