Year	% of GNI
1971	4.759114052552254
1972	5.840720048337301
1973	7.611929389944919
1974	21.957608250851315
1975	16.49788355216211
1976	16.47657618681759
1977	15.349815185107238
1978	15.574504455151477
1980	18.34024785565333
1981	11.56199304794637
1982	8.87357494977598
1983	7.843185500967778
1984	7.628886918486692
1985	7.3294726738688825
1986	2.8206467667614663
1987	5.2229502367395995
1988	4.458130389921195
1989	6.846059192705369
1990	6.098119155819444
1991	7.218705694460638
1992	6.368370176044827
1993	7.4143082503596025
1994	7.7535223784169816
1995	6.359116272303963
1996	6.514395337901325
1997	5.6108058417814926
1998	3.752449553293779
1999	5.29855685261824
2000	8.128460669614165
2001	6.555732768068762
2002	6.474061308245273
2003	7.10912495781499
2004	8.623484624657998
2005	10.900908104826733
2006	11.136786386080288
2007	9.861135388385541
2008	10.924909386205355
2009	6.549866714713376
2010	7.274431157782948
2011	8.134464157941737
2012	7.242696357104803
2013	6.6653910854431535
2014	6.3443790374158695
2015	3.838527893928465
2016	3.4909834271629534
2017	4.878862045229271
2018	7.186723502262062
2019	5.9194103846122
2020	3.4361840316846233
2021	5.934911755723391