Year	% of GNI
1973	2.742400820954275
1974	4.1154417660236255
1975	3.550952339002026
1979	5.5332783132692125
1980	7.387155852802289
1981	6.14555316366778
1982	6.380976335715671
1983	5.544900830433983
1984	4.495261619248563
1985	5.825189483711479
1986	4.831078879501193
1987	4.491725275370499
1988	4.399910965187616
1989	4.950898693605933
1990	5.293890473679309
1991	4.437244681128849
1992	4.345398708471541
1993	4.753024404708273
1994	5.72568649978716
1995	6.333554817255851
1996	6.481678353860522
1997	5.922244409966128
1998	5.255627480063064
1999	4.328305037496581
2000	5.971857827469639
2001	5.567854814610266
2002	5.969273554143178
2003	5.656465961312815
2004	5.894154683591755
2005	7.662157784601095
2006	8.408292492574956
2007	9.88201033879391
2008	11.506921782978262
2009	6.6689130803796886
2010	8.133613767416957
2011	9.932446814273302
2012	8.678891713716832
2013	7.393629403730065
2014	6.072793674733937
2015	4.047183203840414
2016	4.31233025814652
2017	5.0743333822679215
2018	5.17585354559165
2019	4.524755948430582
2020	3.779750392712415
2021	6.305122965652367