Year	% of GNI
1990	7.1099023003489
1991	6.59387888403996
1992	8.43809884650037
1993	9.44626900969729
1994	12.0692325876595
1995	13.0941397753589
1996	13.350378358477
1997	13.6261139961398
1998	13.299214118308
1999	13.3989728954475
2000	13.0284682601781
2001	13.0074177414924
2002	14.5745807444512
2003	17.4620784322458
2004	19.7740418520531
2005	20.7149318542484
2006	22.7058974992491
2007	23.3482563735856
2008	20.9962899376477
2009	22.0212575261852
2010	22.8944719172706
2011	21.0137586667383
2012	21.2627136216667
2013	20.3160963772948
2014	19.7111709820228
2015	19.4759302456778
2016	18.4271504168552
2017	19.3623423020035
2018	18.4845576828816
2019	16.767152591464
2020	14.4411360277761
2021	15.409176052498