Year	% of GNI
1970	13.11069195962252
1971	13.269430653022459
1972	13.313725974735355
1973	13.31275932797816
1974	13.860790922799
1975	14.347392842071773
1976	14.151700717928357
1977	14.268860020031244
1978	14.253562027027444
1979	14.434105480777971
1980	15.057283530009938
1981	15.507080956109014
1982	15.935584927980637
1983	15.797164582974656
1984	15.433266748292262
1985	15.462617257357895
1986	15.699597758706057
1987	15.747992813444895
1988	15.681565739338746
1989	15.79891344036704
1990	15.891426973713086
1991	16.23527052143634
1992	16.347343818417595
1993	16.762986479413232
1994	16.693486509639964
1995	16.68123644780516
1996	16.369116983401696
1997	16.226923960525646
1998	16.186607478379326
1999	16.40804961411392
2000	16.477767129861522
2001	16.5261167985743
2002	16.578490704269417
2003	16.5043852554463
2004	16.35561510160617
2005	16.376934188150813
2006	16.353254642909437
2007	16.495373708368117
2008	17.214203646345588
2009	18.08104654548836
2010	17.549839464671226
2011	17.498705069090974
2012	17.474582836930168
2013	17.34885163808964
2014	17.29945579204189
2015	17.197275999700665
2016	17.24710374456062
2017	17.143551113467666
2018	17.16839714537503
2019	17.33076036928187
2020	18.391819264088294
2021	17.93035768335112