Year	% of GNI
1970	4.37401973113566
1971	4.40590620469375
1972	4.42198008756093
1973	4.41679260293319
1974	4.43350457955923
1975	5.09312120377204
1976	5.2181350376628
1977	5.27033046101467
1978	6.28719412293219
1979	4.78035865254855
1980	4.72001115016401
1981	5.45791212391747
1982	6.01146170064761
1983	5.92626136409184
1984	5.98798140740204
1985	6.18929165999214
1986	6.48087076113364
1987	6.53658941536922
1988	7.09280851242288
1989	6.80681338663616
1990	8.56416669208968
1991	11.2269608077182
1992	8.21511716169472
1993	8.44916651406839
1994	8.77651540362664
1995	9.23342022984472
1996	9.97492715422716
1997	10.9774760465795
1998	11.5750229634447
1999	12.1002095957424
2000	12.0964827497043
2001	11.4566040708501
2002	12.57311574697
2003	11.7000935570511
2004	10.874350716627
2005	11.5324063640301
2006	11.5866911480034
2007	11.8870202289635
2008	11.6684564743251
2009	11.0610956418041
2010	11.1303192675284
2011	12.2862259644011
2012	11.742078074208
2013	11.3397306091528
2014	11.7754888649953
2015	11.7361123862849
2016	12.1896621780042
2017	12.0712070078668
2018	11.4613081015527
2019	10.9329171648771
2020	11.4163130689127
2021	11.228538687069