Year	% of GNI
1970	3.8706249701921567
1971	5.151306609770265
1972	5.572137520565085
1973	9.413360341179192
1974	2.8751549003184684
1975	3.2131839709255865
1976	3.1099136367424727
1977	4.797762197389379
1978	12.648331065258612
1979	12.23390913611641
1980	11.203200794195245
1981	9.675134580826276
1982	9.265575269858584
1983	7.840846988611916
1984	8.433026385401494
1985	7.951664001810147
1986	6.411805884684455
1987	3.199070264606229
1988	3.75146276969804
1989	3.6915147588993036
1990	3.2957197369819293
1991	6.3754627891240325
1992	8.898936423370214
1993	4.1869739338565655
1994	7.239255591017633
1995	10.625098544807951
1996	7.779161061808088
1997	9.38586203150237
1998	7.735968309755068
1999	13.141410150528475
2000	8.195931655673165
2001	10.379316383226495
2002	8.376193473010838
2003	6.466819190689097
2004	3.6274185955914833
2005	2.2938633624776643
2006	1.9846456171464473
2007	8.211112959728133
2008	19.77300796231977
2009	3.9500306458379644
2010	3.627783074984027
2011	2.667439277353115
2012	2.7491788812034472
2013	7.302635502858987
2014	3.02439602863008
2015	3.5689504175095177
2016	2.8728683573098346
2017	4.4613400064995865
2018	4.584886149920478
2019	4.506518041817572
2020	9.772208236634027
2021	6.70235959485534
2022	2.9430596889459935