Year	% of GNI
1970	1.6962501290598828
1971	1.441267092172879
1972	1.3256743669350797
1973	2.6765027402509594
1974	2.7863792528890134
1975	3.7039994183678115
1976	3.0479728778286206
1977	3.1062011791831106
1978	3.0222870887973605
1979	2.5723666108388206
1980	2.4972126979317255
1981	2.504077465202342
1982	1.7952776151614058
1983	1.3121281369416158
1984	1.223222649417609
1985	1.2165305062266316
1986	1.0355222328470775
1987	1.3301263632954494
1988	1.0687835955972382
1989	1.0542684629005694
1990	2.2296682971270787
1991	4.137943316705131
1992	2.496171584192041
1993	1.8790608637909874
1994	1.938885438556437
1995	1.4418027254295382
1996	1.3710991842055213
1997	1.2103123082603442
1998	1.1810936541611683
1999	0.9982353159892834
2000	0.817830131722427
2001	0.8161248665761807
2002	0.7566896898862675
2003	1.3830139312277905
2004	1.538438053171748
2005	3.7716105177120145
2006	1.661980605743441
2007	1.4334907282728198
2008	1.3131930496215436
2009	0.6619960185929599
2010	0.5007203613187258
2011	0.4953464685061594
2012	0.5913887026292902
2013	1.0587395597048939
2014	1.1008801188642123
2015	1.1412928529813573
2016	1.5716648130249766
2017	1.7020367236699412
2018	2.0669400963537674
2019	1.7376874019185646
2020	1.9285060385110087
2021	2.113142417878759