Year	% of GNI
1990	6.3507837394436
1991	6.274986530473687
1992	6.348031105425299
1993	5.624980979284013
1994	7.056898560900785
1995	7.338039946312741
1996	8.123159375696696
1997	9.4513190401633
1998	9.531659376268356
1999	9.08495689441413
2000	8.702914186972025
2001	7.56684183747619
2002	6.474576367343094
2003	5.62585194693959
2004	5.9224195313029
2005	5.707713829308622
2006	7.092791809465163
2007	5.273447475376227
2008	2.449588903787717
2009	1.0603604421278556
2010	3.1380785500804382
2011	4.34064261862659
2012	6.096329806740667
2013	7.3668987643060655
2014	8.19198713386296
2015	7.362262154709531
2016	6.121739316179033
2017	6.86960089448488
2018	6.7196714819177155
2019	6.768314923242994
2020	5.566500778064908
2021	4.567647143974879