Year	% of GNI
1970	12.440049247509352
1971	12.656969108681581
1972	12.757031434241645
1973	12.724572292604805
1974	13.260388548950777
1975	13.861096188593946
1976	13.704299637934588
1977	13.853729286859576
1978	13.744687242749498
1979	13.77745764994741
1980	14.475881262201838
1981	15.085678031357551
1982	15.358173198253038
1983	15.39524157877422
1984	15.359848565354245
1985	15.332850256023173
1986	15.079284439877181
1987	15.12396676635441
1988	14.962751692033565
1989	14.891025614018607
1990	14.921500649488353
1991	15.079773733296722
1992	15.208449255137984
1993	15.623497838139476
1994	15.568925295121513
1995	15.559757796073649
1996	15.516520365455952
1997	15.457082828663335
1998	15.37437208945068
1999	15.415398449310992
2000	15.59190281377263
2001	15.709531653450323
2002	15.92222998587665
2003	16.01476528386596
2004	15.962616656357111
2005	16.079382716822003
2006	15.998689085018441
2007	16.053440387611158
2008	16.572928723905257
2009	17.423093374303477
2010	17.33377344836902
2011	17.332641777046643
2012	17.655287238769596
2013	17.68647151541293
2014	17.590489707029704
2015	17.681158211201517
2016	17.572908264449666
2017	17.537875579226473
2018	17.59464577012474
2019	17.80792044767363
2020	19.288578982877734
2021	18.80560525496586