Year	% of GNI
1970	10.7105663254388
1971	10.8773572648592
1972	10.9291440394874
1973	11.0072236217086
1974	11.6072011373983
1975	11.4194810526565
1976	11.6394152903471
1977	12.3720338219208
1978	12.6099670721407
1979	12.6523079140861
1980	12.8596534075837
1981	13.2034655930082
1982	13.5837675825352
1983	13.7989981550008
1984	13.4203995893582
1985	13.547371519411
1986	13.2831857196698
1987	13.2371685522952
1988	13.3858984034343
1989	13.6781439833022
1990	13.8896098042007
1991	13.8785932418378
1992	14.2862159694566
1993	15.144567987386
1994	14.228266462904
1995	13.8103238596188
1996	14.2050687479118
1997	14.4412452586887
1998	14.6415586839331
1999	15.1491427970018
2000	15.5494743567002
2001	16.1499064273971
2002	16.3293508862468
2003	15.7128592803137
2004	15.5998808229175
2005	15.6052612649175
2006	15.2262147347231
2007	15.1220169767626
2008	15.7762141304953
2009	17.2590930056907
2010	16.4174424325688
2011	16.2204911915995
2012	16.5950252741591
2013	16.5613668951793
2014	16.5414153464925
2015	16.4500047660241
2016	16.4781446037028
2017	16.4657434549725
2018	16.7144001799024
2019	16.5375504258243
2020	16.993295322518
2021	16.8603634442905