Year	% of GNI
1970	4.351856436590305
1971	4.377675158651941
1972	4.384173154550987
1973	4.440683249604669
1974	4.36510062109014
1975	4.387916284409224
1976	4.455237568217161
1977	4.531972504867119
1978	4.506024478273987
1979	4.5312001602710135
1980	4.4399220736705205
1981	4.640524185629959
1982	4.660677940712167
1983	4.7769226245284475
1984	4.701472228820787
1985	4.719783042555135
1986	4.600764692990697
1987	4.407031892174729
1988	4.382106269887898
1989	4.258719895404878
1990	4.114212724196881
1991	3.9873302221094473
1992	4.198987448112488
1993	4.548117959523734
1994	4.350771532139225
1995	4.3330207682271595
1996	4.423139492569242
1997	4.501743762188632
1998	4.833914257481088
1999	4.5773789035565615
2000	4.557984212115471
2001	4.5266141768445145
2002	4.658207321726904
2003	4.880123036405305
2004	4.839490895470155
2005	4.818821798952278
2006	4.684000457824394
2007	4.596502095245537
2008	4.6876792218857375
2009	4.824459891589558
2010	4.780142518720323
2011	4.68638952721748
2012	4.621416318125111
2013	4.628748300486062
2014	4.784958320443587
2015	4.761351710524426
2016	4.835019684340398
2017	4.745254438643795
2018	4.742286573633377
2019	4.655063545655217
2020	4.678794295737573
2021	4.732104801257778