Year	% of GNI
1979	21.041084364906453
1980	24.098659766000072
1981	23.56045685921552
1982	22.85851270806738
1983	22.508088818119926
1984	21.44109953601608
1985	22.956379948264885
1986	18.747940267655192
1987	20.600333105854567
1988	19.73355799616259
1989	26.8560335305785
1990	19.094073327379817
1991	17.86737298510837
1992	17.388916058506684
1993	19.24417957613427
1994	19.17628936691145
1995	17.432162068231534
1996	17.201989957409452
1997	17.407426010655698
1998	17.599717652448046
1999	17.423991680117496
2000	17.59585527028516
2001	17.328683082984394
2002	18.32015267603388
2003	18.50243112844291
2004	20.23029572624191
2005	19.76944589244445
2006	21.436783643621034
2007	21.62814927986471
2008	21.29959145720614
2009	19.275729004184257
2010	20.121663235165425
2011	20.499936104009485
2012	19.706373818957978
2013	18.99056918359513
2014	18.404174720678572
2015	17.67741633375505
2016	17.47503818215033
2017	17.421490133178363
2018	17.356288968582614
2019	17.639672572381144
2020	19.249893353244754
2021	20.615305846556737