Year	% of GNI
1970	8.71823506045743
1971	8.80781295561262
1972	8.67494298710131
1973	8.44532197611763
1974	9.16313439617796
1975	8.50330419121405
1976	9.08662439477305
1977	9.52846288333143
1978	10.7213853309572
1979	11.145214944737
1980	12.2388938197828
1981	11.4200017371913
1982	11.6875066931637
1983	11.9763759071638
1984	11.519677166482
1985	11.606356802013
1986	11.5569169770034
1987	11.7934351137639
1988	11.4028271047052
1989	11.5135374132218
1990	11.6006050603623
1991	12.1309030269978
1992	12.189538268919
1993	12.1335170754097
1994	12.5098883119494
1995	12.550671868553
1996	12.3835875479936
1997	12.1694472516846
1998	12.2050413910512
1999	12.9954939329582
2000	13.1386454712571
2001	13.4747166217688
2002	13.7060552979145
2003	13.9547998408057
2004	14.5177163061983
2005	15.3213139748935
2006	16.3169241059824
2007	15.8959622647911
2008	15.8722706597393
2009	17.0225558942025
2010	16.9777705763386
2011	17.0730861060662
2012	17.9101250728215
2013	17.7112644855756
2014	17.6753423612561
2015	28.3547182328149
2016	29.7892166470336
2017	31.422973794786
2018	32.1009049911214
2019	32.6466564699434
2020	37.8056054987657
2021	34.6403555839877