Year	% of GNI
1970	2.7044065273804785
1971	2.566625026407371
1972	2.6971016401475327
1973	2.6837894172866075
1974	2.6639102599074445
1975	2.5316544362004305
1976	2.7028168860666923
1977	2.741596471743596
1978	2.8058471826440776
1979	2.876401965514435
1980	2.8039127310056067
1981	2.7168371267889246
1982	3.0055545217172313
1983	3.1296869970433985
1984	2.7991491773829873
1985	2.9320547522094444
1986	3.1555312011177588
1987	3.125933864699532
1988	2.994880284074106
1989	3.3198370290048245
1990	3.554625786072607
1991	3.561312103047513
1992	3.515666684580628
1993	3.538643859537952
1994	3.5114081108655726
1995	3.6254396527733226
1996	3.5787001640619716
1997	3.633034941921856
1998	3.644687178867537
1999	3.808352446651811
2000	3.673867331572587
2001	3.5785963905883538
2002	3.4678091255789782
2003	3.3844327313906875
2004	3.212483965784998
2005	3.2399064520769234
2006	3.1711047657573617
2007	3.1797708484413887
2008	2.9565479740935454
2009	3.004740831909237
2010	3.034069427790646
2011	2.9948283194865972
2012	3.02858114360452
2013	3.0273071981954374
2014	2.998431051902116
2015	3.0062326073191765
2016	3.0458516087738468
2017	3.0157599263655674
2018	2.9717488709716258
2019	2.9588127537586013
2020	2.98364437089631
2021	3.0042224788592127