Year	% of GNI
1974	16.3124387848437
1975	9.19634703196347
1976	11.9573609285799
1977	16.001246985356
1978	14.3331077583076
1979	13.8970881919446
1980	8.64591184399291
1981	5.90073055169433
1982	2.87562934888479
1983	2.73302660326387
1984	4.55729840381587
1985	7.05308929491909
1986	5.93877181299738
1987	9.61970737661444
1988	13.5196249561642
1989	9.25725023043408
1990	14.5517285610703
1991	14.7121244499463
1992	13.5433074196611
1993	21.0368349504191
1994	24.9404916885176
1995	23.061814903239
1996	21.5051081167372
1997	24.435940544165
1998	24.7287244775337
1999	27.3856491507763
2000	20.8691403151744
2001	19.4451784932458
2002	19.4317464936655
2003	19.6859995519719
2004	21.2760682676162
2005	25.0582259933739
2006	26.3665069455346
2007	24.7889039640265
2008	22.1030321634285
2009	19.2401993737761
2010	18.3936230489565
2011	19.7485944031478
2012	17.1985635852516
2013	13.6600751361909
2014	15.9972346632279
2015	21.1148279904753
2016	21.9575132242482
2017	24.6676429398967
2018	21.2534431239317
2019	21.8414971605427
2020	23.169275239052
2021	20.8535059056264