Year	% of GNI
1970	14.967631449497851
1971	15.49319014789636
1972	16.182672376197335
1973	16.060746947268566
1974	15.79844430601344
1975	16.44638308150978
1976	18.597570702114776
1977	17.492721066129928
1978	16.827747462195155
1979	16.321850509379
1980	15.478321511539377
1981	15.90156461331696
1982	18.04737117061159
1983	18.820733625463145
1984	19.91379318999887
1985	21.381847756877555
1986	23.25815576658984
1987	24.749575421789913
1988	25.067239938647884
1989	29.216054574901445
1990	30.80933114949806
1991	36.26816387316911
1992	35.424285381926865
1993	36.92695639205253
1994	35.37480280346228
1995	31.745481573933336
1996	28.81003767613314
1997	27.31155805318743
1998	28.569126641948174
1999	27.555739216500786
2000	25.264891247470562
2001	24.136619706653597
2002	24.634765580326064
2003	23.406910606215188
2004	20.922037759649
2005	17.72086915869372
2006	19.330199485187013
2007	18.899925040299294
2008	20.88552162066467
2009	21.595788761293296
2010	19.82332305148624
2011	20.164976218313882
2012	22.92282878619875
2013	23.955802161609576
2014	23.450718815641206
2015	23.57131300879005
2016	21.050429773647043
2017	21.07856254830369
2018	21.210896208214834
2019	22.114655116867628
2020	24.007529180584932
2021	22.730370189963885
2022	21.206386852949883