Year	% of GNI
1981	24.57487451191902
1982	25.945952893053818
1983	26.21428176378716
1984	25.765356718476617
1985	26.667198196089128
1986	24.25985711443464
1987	25.335019397296982
1988	25.269779311179846
1989	27.93044951745375
1990	24.061108594182567
1991	23.83009799557568
1992	23.970924532683895
1993	25.609748830261132
1994	26.115048954297915
1995	25.268737200150902
1996	25.507117030042224
1997	25.401978450693544
1998	25.074587891798075
1999	24.832647306527456
2000	25.24007139459284
2001	25.691176125269855
2002	27.4369798332788
2003	28.909318074689025
2004	30.891937480033196
2005	31.685060464821458
2006	33.59551464538354
2007	34.6186136407292
2008	36.09286003005728
2009	35.204723734460394
2010	36.08710331330525
2011	35.920749198797964
2012	35.897642600036036
2013	35.47165574942549
2014	35.86274020528594
2015	35.58492597900471
2016	35.14110020324998
2017	35.57054589204417
2018	36.30441582669844
2019	35.80676403034646
2020	36.654133339949055
2021	38.50753490265556