Year	% of GNI
1970	2.7561266280150583
1971	2.5334545324597055
1972	2.6614580220656934
1973	2.6370066098983456
1974	2.6721731297403113
1975	2.6514183652068515
1976	3.06241864071564
1977	2.8911879289679976
1978	3.182438608863055
1979	3.1602221821970673
1980	3.0247346634886116
1981	3.245250568701272
1982	3.3219293357891715
1983	3.081611059674833
1984	2.9115092519235333
1985	2.803692197329737
1986	2.86223075176991
1987	2.893982364297476
1988	2.9525577099287554
1989	3.230071412830064
1990	3.2779214581257836
1991	3.1930015375453724
1992	3.320909663553049
1993	3.290620807417171
1994	3.444269510975197
1995	3.3226913188559086
1996	3.384383994586188
1997	3.5068389733900553
1998	3.5261991459226496
1999	3.3757431790771535
2000	3.413013067229671
2001	3.4626146931504573
2002	3.3758649554168314
2003	3.3978646821103977
2004	3.344494164339838
2005	3.402199181268041
2006	3.3788194476517104
2007	3.3461926374218187
2008	3.3836879516452694
2009	3.450101606168668
2010	3.452811143981505
2011	3.438979806104713
2012	3.3807088817282724
2013	3.330847502117958
2014	3.3064493351103104
2015	3.133025011679387
2016	3.10870835336768
2017	3.1476550964016927
2018	3.0465210229122053
2019	3.0356587875712213
2020	2.9614979644608592
2021	2.938738431115403