Year	% of GNI
1973	7.05889213007712
1974	6.64253271923044
1975	6.908977085873012
1976	6.749119290840975
1977	6.498975340364328
1978	6.526231950398806
1979	6.641239320689081
1980	6.6944899763870955
1981	6.187347527678689
1982	6.017317640901822
1983	5.848614727987766
1984	6.0612283066845665
1985	5.918155654616599
1986	5.668235489584259
1987	5.923192899744587
1988	6.992577605531173
1989	6.763756506502282
1990	6.461535127601556
1991	6.688579173013845
1992	7.191073187119082
1993	7.360218712931836
1994	7.512847510576134
1995	7.563615729121101
1996	7.985037407773982
1997	7.93265896342226
1998	7.984888188059311
1999	7.801619736473636
2000	8.146691605284852
2001	7.887054844549654
2002	7.852504484756178
2003	7.662629810939094
2004	7.7162460931667525
2005	7.586372383826318
2006	7.748501532717787
2007	7.671966870515519
2008	7.772950334498205
2009	7.713586742569592
2010	7.854116498735964
2011	8.437402702580817
2012	8.965452603229009
2013	8.731692835632588
2014	8.616162726074231
2015	8.553667123205823
2016	8.408873143020712
2017	8.496500630944668
2018	8.266398175888199
2019	6.054783370219092
2020	6.011368219565467
2021	5.980814677427598