Year	% of GNI
1970	3.0003381991084943
1971	3.1415508285828135
1972	3.4093449379597867
1973	3.143529748077755
1974	4.165743454524565
1975	3.7907052675536916
1976	4.997774002194016
1977	5.002491348195355
1978	6.227365662032406
1979	7.626326899400422
1980	14.535275501355846
1981	19.376913799692634
1982	21.913963482137746
1983	20.609065209925163
1984	17.935206743774295
1985	17.69817551139163
1986	15.597935519396694
1987	14.877842681692874
1988	11.554665109974096
1989	12.852108653882247
1990	13.702640274167393
1991	14.027898272812456
1992	11.823874898708112
1993	11.301242067807934
1994	16.502323498714283
1995	10.44806965022417
1996	12.2485578855119
1997	10.603333709909599
1998	11.509082043987206
1999	12.357708238313778
2000	10.498320547986987
2001	6.242991585891301
2002	7.653064069257861
2003	4.375768410312815
2004	2.649639665397066
2005	1.8681315064379749
2006	1.5786600320680557
2007	2.2046865570090532
2008	4.474580343444474
2009	4.834653629112983
2010	3.1314423591580676
2011	2.9927662457400452
2012	2.7822168196133426
2013	3.5154706743777147
2014	2.1057667001340032
2015	1.8061148864890897
2016	3.31061500415833
2017	4.411155825487753
2018	2.9081114948610516
2019	5.115064104853884
2020	4.010141771307887
2021	2.459544113590092
2022	3.087893368411061