Year	% of GNI
1990	14.6772035052432
1991	16.6546465166624
1992	15.7341099100304
1993	15.2963101315238
1994	15.1665692924381
1995	15.1287459925927
1996	15.5195595350964
1997	14.9958830777642
1998	15.179942761309
1999	12.1212126394597
2000	10.5895941405319
2001	10.774712102103
2002	13.6735760696271
2003	13.5828286275652
2004	16.0207691584959
2005	17.5845120908387
2006	16.5486735699571
2007	17.6351036199665
2008	16.9415238884733
2009	18.1084921995107
2010	17.975105587016
2011	17.8815326746214
2012	12.060521129215
2013	13.5647184886036
2014	12.1557881568113
2015	13.7624665423412
2016	16.6410528696731
2017	14.4371721046763
2018	12.2079289915334
2019	13.904284178835
2020	14.0507122742869
2021	13.9828054147016