Year	% of GNI
1970	7.027308882833676
1971	6.645723462498514
1972	6.661085508445379
1973	6.584443136170548
1974	6.992250308048003
1975	7.507453548251305
1976	7.569611956249921
1977	7.271157102406608
1978	7.380690580395668
1979	7.949276946976945
1980	7.781723628226105
1981	8.043550693109802
1982	8.32952818017636
1983	8.058107981532928
1984	8.324325662151765
1985	8.780073765433288
1986	8.86286953057427
1987	9.140870100058471
1988	9.019818304112352
1989	9.090081101794983
1990	9.108798064987726
1991	9.508249243541297
1992	9.607977524322914
1993	9.28682174836164
1994	9.216508502675161
1995	9.176301368401123
1996	9.039808210646516
1997	9.24387714390706
1998	9.116884821329291
1999	9.19247274965463
2000	9.493642928938398
2001	9.597798456522373
2002	9.572119087578212
2003	9.418430155633857
2004	9.654750305103985
2005	9.649333584355235
2006	9.590600056087801
2007	9.594488115622001
2008	9.736559320495518
2009	9.72393309416139
2010	9.554001269029747
2011	9.647524366216905
2012	9.743450647814823
2013	9.698335710872813
2014	9.808798323805135
2015	9.565218903369317
2016	9.519444410427623
2017	9.497964029680661
2018	9.589733921025305
2019	9.03900404309002
2020	9.787723835069405
2021	10.097053080382631