Year	% of GNI
1970	14.4939903290075
1971	14.6299447843646
1972	13.8095391730656
1973	16.4287902272268
1974	15.3859668419932
1975	10.3659187297583
1976	12.2108292898634
1977	11.6885548316386
1978	10.7815836687854
1979	11.8752036343334
1980	11.1401774219956
1981	10.1797612821481
1982	9.84574965643363
1983	10.6514308099186
1984	10.0547376170369
1985	11.2060674766167
1986	10.8624020052718
1987	12.1860807780378
1988	10.6864010925734
1989	10.7196096419703
1990	10.8908120169026
1991	12.6313274357817
1992	13.3100322069552
1993	13.7612949446063
1994	10.6452825995892
1995	8.87186209717162
1996	10.2442012947802
1997	10.769362519625
1998	10.8796204239596
1999	11.1964227121853
2000	12.61381058847
2001	14.1004772102797
2002	13.1006238078537
2003	12.8028331103054
2004	13.4862904938417
2005	12.9221192364706
2006	13.0536499539321
2007	12.6206015861534
2008	12.8727846128532
2009	12.114764377639
2010	13.0855075407089
2011	13.8175248922091
2012	13.8090206499367
2013	13.5012625437838
2014	13.8809342765444
2015	13.456197690666
2016	13.8876251331999
2017	15.0629272067718
2018	14.5701935002514
2019	13.8438710552319
2020	16.1718972590915
2021	15.7051434702191