Year	% of GNI
1990	17.3422617043618
1991	9.3758147238903
1992	12.5763051140811
1993	21.4359510449625
1994	22.9592561518615
1995	25.9424956056171
1996	23.7442837986892
1997	20.5036280266167
1998	16.4708417384299
1999	17.3951130260083
2000	15.133065609244
2001	13.1992090217726
2002	17.8693208489967
2003	25.5672897460743
2004	20.5771590571339
2005	8.62434200895785
2006	10.3084258351825
2007	6.16296256147233
2008	20.0270737919334
2009	20.3952878328456
2010	22.1496024582106
2011	15.4571461396391
2012	9.96684868011654
2013	10.8261164484709
2014	12.9964806144621
2015	9.95393479943805
2016	7.13157844335721
2017	5.59871411245697
2018	5.41004699388782
2019	9.01354367008155
2020	5.54551463395898
2021	4.43290457078457