Year	% of GNI
1976	14.849985964504297
1977	16.015456089642477
1978	15.74247290247551
1979	13.792736996451934
1980	14.173028863455714
1981	15.295719701548695
1982	16.06993100515977
1983	16.737646502755528
1984	18.565759802099322
1985	16.97310321318971
1986	19.199173531258136
1987	18.264825623037858
1988	17.136381420293997
1989	15.536255010891482
1990	17.197763192086427
1991	18.49696698861461
1992	18.05695230148984
1993	18.04689129855353
1994	20.267509406886166
1995	19.47451712358258
1996	16.975703235625385
1997	16.935771385029348
1998	17.8461233942702
1999	17.962592683145076
2000	19.78320247693535
2001	19.916948670462485
2002	20.21684212569315
2003	20.925498607779204
2004	21.665636453582287
2005	20.838124713915015
2006	20.58332524929312
2007	20.382423663049853
2008	26.236219451448328
2009	21.503483699013717
2010	22.217927658081514
2011	22.74581960184805
2012	26.196323737147665
2013	18.938964976488716
2014	20.70243807216487
2015	16.9161805247724
2016	16.016861707966093
2017	16.705855701078853
2018	17.07724043479858
2019	19.241871688245816
2020	22.711631829199813
2021	24.759926359477518