Year	% of GNI
1970	10.6303802809483
1971	10.6502687630592
1972	10.6780868274333
1973	10.7259224464355
1974	10.7416849649416
1975	11.538680681182
1976	11.537305010649
1977	11.567332254634
1978	11.6454403601189
1979	11.6147871940922
1980	12.7208471278177
1981	12.5663525284277
1982	12.3923502616065
1983	12.3143611339943
1984	12.2188132603447
1985	13.1830823784972
1986	13.3542016490467
1987	13.4540508753985
1988	13.4225665782482
1989	13.3765841212086
1990	13.309544596475
1991	13.3181978762999
1992	13.2711113167063
1993	13.1950100294636
1994	13.2630343273821
1995	14.4224848058902
1996	14.3488920968096
1997	14.0828510453649
1998	15.587271169371
1999	16.0774101204035
2000	15.125964706932
2001	17.803849799008
2002	18.4513159759886
2003	18.5659743778765
2004	19.2129442355013
2005	17.3560548852058
2006	15.9840934891825
2007	15.5229777308124
2008	15.294305531733
2009	20.8618996228125
2010	19.9099303277105
2011	20.8336465721275
2012	22.9341655440397
2013	18.900147772852
2014	18.0396457876351
2015	17.3801904071816
2016	16.1278291090955
2017	13.2557859572035
2018	12.9955947136564
2019	14.8699839486356