Year	% of GNI
1970	11.8001009742976
1971	11.6786515006391
1972	11.0264546294698
1973	10.702252076951
1974	11.0368641197882
1975	11.5233743558348
1976	11.5433411458943
1977	11.5245863762382
1978	11.4433866797723
1979	11.9207582101722
1980	12.3373725923608
1981	13.2112711629956
1982	13.4203831451193
1983	13.8288476538351
1984	14.065936627826
1985	13.9588619317304
1986	13.0992106150195
1987	12.682794218726
1988	12.5634766886037
1989	12.2284535458216
1990	12.100346883977
1991	11.9838727875033
1992	11.9289418146389
1993	12.4257400870825
1994	12.5968689329574
1995	12.3469525985599
1996	12.4681456292494
1997	12.5792279281334
1998	12.3272198453979
1999	12.5789413072438
2000	12.736117461787
2001	12.8035805466582
2002	12.9192969010064
2003	13.0586088451835
2004	13.3660784711889
2005	13.6329988490367
2006	13.7503070223593
2007	13.8711866638654
2008	14.2630158689795
2009	14.9415216083831
2010	15.28339995127
2011	15.7522887784672
2012	16.1038150985541
2013	16.0351053302412
2014	15.9876908626468
2015	15.6514559036219
2016	15.453952243304
2017	15.3121127731565
2018	15.2077730975077
2019	15.2024178570705
2020	17.3970420966362
2021	16.9565808745246