Year	% of GNI
1976	7.813743129888087
1977	8.13271915324146
1978	7.865627869312493
1979	6.766995893349016
1980	7.142525703096097
1981	10.175731696898344
1982	10.217209605604504
1983	10.75340993221375
1984	9.656103747563908
1985	8.93695678777399
1986	9.963753110616386
1987	10.672026452879654
1988	11.304830168326408
1989	12.164307084545676
1990	11.442000297235642
1991	11.628943220114913
1992	11.93996662415044
1993	11.714265695452479
1994	13.303668738471966
1995	13.193862472110665
1996	12.906494184247155
1997	13.37108134474424
1998	14.050964076151942
1999	14.459098262408999
2000	13.506940019516174
2001	13.960169709812622
2002	14.482321675157552
2003	15.803911046930576
2004	17.302840717396403
2005	17.012734303829568
2006	17.99838080224257
2007	18.41370871790987
2008	16.374758123964497
2009	16.80215679153107
2010	17.7138046194829
2011	16.2358418953937
2012	16.97854935969551
2013	15.400898255767984
2014	16.133517320102357
2015	15.83167651175943
2016	15.69144215496291
2017	16.49344022285508
2018	15.933425225569849
2019	16.07793761734962
2020	15.492511242390625
2021	15.00494549177678