Year	% of GNI
1973	2.7424008209542747
1974	4.1154417660236255
1975	3.550952339002026
1979	5.5332783132692125
1980	7.387155852802293
1981	6.145553163667781
1982	6.380976335715671
1983	5.544900830433985
1984	4.495261619248562
1985	5.825189483711479
1986	4.8310788795011925
1987	4.491725275370498
1988	4.399910965187617
1989	4.950898693605934
1990	5.286099666614689
1991	4.4309461939518044
1992	4.338428553093659
1993	4.744712763082986
1994	5.714873681874043
1995	6.323034522212797
1996	6.471170842344986
1997	5.911745340548933
1998	5.245163314353375
1999	4.319517489349733
2000	5.960457903985515
2001	5.555861060297216
2002	5.956370485209464
2003	5.646758613656028
2004	5.883529723339179
2005	7.649108788600057
2006	8.394228265825289
2007	9.868632389402853
2008	11.497899207100488
2009	6.664221667344636
2010	8.12792920308874
2011	9.926167282801568
2012	8.673120786821713
2013	7.388308015130443
2014	6.068506661952054
2015	4.043888207212247
2016	4.308181644241722
2017	5.069414103854162
2018	5.1708790247734555
2019	4.52028228351316
2020	3.776852723625711
2021	6.300426416142322