Year	% of GNI
1970	9.093328963825687
1971	8.908631889327113
1972	9.187867791292504
1973	8.986719476927378
1974	8.928924250303822
1975	9.412735690577799
1976	9.646036679120913
1977	9.763372159177269
1978	9.955854013631123
1979	10.21867597646047
1980	10.78653014374428
1981	10.793820153970092
1982	11.119136960973286
1983	11.107786994673253
1984	11.070359495720117
1985	11.20032030591932
1986	11.838007564904329
1987	11.727731324885013
1988	11.460906211413473
1989	11.463822183204764
1990	12.25560923912765
1991	11.01958334206206
1992	10.962964764377476
1993	11.239942511674004
1994	11.291999047954194
1995	11.616356498523261
1996	11.41699298872004
1997	11.794168967377226
1998	12.525501594772253
1999	12.669076892504561
2000	12.530959218247611
2001	13.071254174548157
2002	13.140434868864999
2003	13.2643814118838
2004	13.259386648476298
2005	13.211071656380271
2006	13.250902081713043
2007	13.348416094723003
2008	13.79925326148948
2009	14.860747522681706
2010	15.162962065635945
2011	15.952362444633755
2012	16.776380265107054
2013	17.402000983323738
2014	17.756595667725932
2015	18.25720257523153
2016	18.24258452928665
2017	18.118296662199352
2018	18.913884300783874
2019	19.242533768481614
2020	20.348419903588514
2021	20.433120314880483