Year	% of GNI
1970	3.0769298598075783
1971	3.2191432476662976
1972	3.379464796111438
1973	3.32659946483678
1974	3.3354247276296407
1975	3.4267502070165303
1976	3.500468781534135
1977	3.0558939677910137
1978	3.272120339634231
1979	3.3889924862960266
1980	3.01727536487464
1981	3.2421550847580005
1982	3.8452799097315036
1983	3.686539496093463
1984	3.4740965575653937
1985	3.253855243488053
1986	3.4776190177014406
1987	3.774142804042596
1988	3.5540163686776607
1989	3.777352920894479
1990	4.075519718478019
1991	3.274791609498018
1992	3.4308920906282956
1993	3.2887522646104164
1994	3.0657898245667132
1995	3.1537592129300394
1996	3.06052009923706
1997	3.145115809173917
1998	2.9775724886857207
1999	3.117261867461483
2000	3.059591973139152
2001	3.1109441933947113
2002	3.1771896088012173
2003	3.1861944690943247
2004	3.272049572786692
2005	3.2528169813104215
2006	3.258959954880954
2007	3.2921871626980135
2008	2.489410919095237
2009	2.6157029368671036
2010	2.5775721001238256
2011	2.643181582947815
2012	2.6671017815045364
2013	2.6521011325852046
2014	2.643884500110499
2015	2.518135988252504
2016	2.6200864372901087
2017	2.747662407699673
2018	2.7681101721282886
2019	2.7105666266423443
2020	2.690912100882817
2021	2.7649309688079455