Year	% of GNI
1971	7.941032929767457
1972	7.592283864466629
1973	7.489335493011501
1974	4.846024015027809
1975	5.526118454986041
1976	5.68426107758494
1977	6.8647670148703295
1978	8.000179032798815
1979	7.8601667115052525
1980	9.500441213429488
1981	9.358727756137244
1982	10.860664659934832
1983	11.670672839056365
1984	12.422084228408629
1985	13.401215913201375
1986	14.384252153930637
1987	14.063579630171175
1988	14.055903606358738
1989	13.476355737637533
1990	15.092226915760177
1992	8.476302218963651
1993	10.794230606750105
1994	11.303466869824168
1995	12.596208208471975
1996	12.402571615678387
1997	12.206494817272505
1998	12.462910474047217
1999	11.86615389686547
2000	10.402245984559382
2001	10.807695493031323
2002	10.606805477743514
2003	10.529306650477354
2004	10.456824726750256
2005	10.15305529403166
2006	9.993934465265156
2007	10.030288833326084
2008	9.932608650364932
2009	10.784037951540897
2010	9.651749907707314
2011	9.186064906989209
2012	9.834513750836532
2013	10.034281198600674
2014	10.214064823978985
2015	11.30995882821708
2016	11.032625217487928
2017	11.001614578152694
2018	10.5310583145723
2019	10.58026439709865
2020	11.390467438543066