Year	% of GNI
1970	10.1704027260317
1971	10.6715259054897
1972	12.8533380231863
1973	9.50507372272708
1974	9.03185759393016
1975	6.22249230604389
1976	8.65548507787083
1977	9.56331196765892
1978	7.32693101469421
1979	6.75737569304303
1980	5.95848775907525
1981	5.82668526568232
1982	5.99009349907936
1983	7.79800416173991
1984	8.86818446211922
1985	9.26878335544198
1986	11.3303540318091
1987	12.4742305334466
1988	12.6239985559826
1989	12.959230865529
1990	11.3252303830171
1991	12.5877015106052
1992	13.4834731505037
1993	12.5696911756287
1994	12.4536338840223
1995	10.6787684655333
1996	13.1480694671431
1997	12.4576315808388
1998	12.6753650262226
1999	12.9724799859961
2000	12.9397675129836
2001	13.0818420409947
2002	13.1498279580488
2003	14.9883934875115
2004	11.7242556591747
2005	12.8575364311955
2006	13.9912999288557
2007	13.2225548533855
2008	10.8454307751114
2009	15.2086914977849
2010	16.3020970665988
2011	17.8787734886732
2012	19.2352310998613
2013	15.9233340304002
2014	11.1844076615013
2015	10.5393756160722
2016	13.6711946224614
2017	12.4683241084307
2018	11.038176399413
2019	10.8219167116065
2020	10.0932570790136
2021	8.66031304473399