Year	% of GNI
1990	2.2751160404178457
1991	5.165976253179334
1992	2.9026485266241293
1993	3.5686385676736267
1994	6.072263084594288
1995	5.088669698059643
1996	3.2614963835604436
1997	3.5911128904957055
1998	2.4011539909441213
1999	2.3909088424919545
2000	2.0922830998929745
2001	2.092932922534995
2002	2.2338577072036916
2003	3.582051657191536
2004	4.7763760430674935
2005	3.9040768788067406
2006	3.2393350319811036
2007	4.1301609712783
2008	7.89694702790384
2009	6.279770269711864
2010	5.031677761140976
2011	4.88815066277288
2012	9.75269886406942
2013	3.779816919398094
2014	6.637199369714712
2015	4.513822430217216
2016	4.106445188034467
2017	3.9441511626426653
2018	3.3614671492893273
2019	5.269340978545798
2020	9.086447935660637
2021	9.862905839328164