Year	% of GNI
1990	31.2894747441623
1991	32.8240655212891
1992	34.7001539597321
1993	32.0025006772141
1994	36.1520661938875
1995	39.1228586013148
1996	37.9923447354681
1997	40.7266331474055
1998	38.0035263815863
1999	34.8593592700677
2000	33.591407805795
2001	25.9227263986723
2002	23.9520337308761
2003	24.7151889352799
2004	27.5115832289516
2005	31.404990026941
2006	36.4938349878043
2007	39.1943086908216
2008	32.2959292896483
2009	31.6588596211991
2010	39.7740169350226
2011	38.7265182656778
2012	37.2188239009355
2013	35.1966393221324
2014	36.324135739277
2015	32.910635456083
2016	33.2348836363902
2017	34.9013525585974
2018	31.6118233656725
2019	28.0116959035888
2020	26.2182472376359
2021	31.6306512442267