Year	% of GNI
1990	12.6465799013604
1991	10.0162221065627
1992	12.2776404016716
1993	11.9636529399643
1994	11.6634258555794
1995	12.8960897958003
1996	13.3531387884744
1997	14.2063064279521
1998	14.0646542334259
1999	14.2406701848501
2000	14.6322423408353
2001	15.4816365044339
2002	14.5203850362146
2003	14.0898424819914
2004	14.7000115842742
2005	15.2050762857279
2006	16.1612739314553
2007	15.0398155370081
2008	13.4675724629057
2009	10.8812920240761
2010	13.3117016494889
2011	14.3421475462103
2012	12.8402288109033
2013	16.2325739252303
2014	17.4797198148019
2015	17.8516472233611
2016	18.646993192097
2017	19.8193058162266
2018	18.3586947453713
2019	18.5082087516985
2020	18.5960679747119
2021	20.4651190138328