Year	% of GNI
1990	1.2496105783195963
1991	2.3955828951281912
1992	2.520748062617977
1993	3.4605247947846354
1994	3.704449822591845
1995	3.3455142308339907
1996	3.081733263726918
1997	3.216998574128975
1998	3.1165660720100723
1999	3.1218921279954537
2000	3.1822160851296233
2001	3.4538527303103157
2002	3.755964246413752
2003	3.684949675566354
2004	3.4573533190964296
2005	3.3534077578372994
2006	3.135542974891447
2007	2.7587223096275304
2008	2.4032921803489344
2009	2.6747291012250893
2010	2.4535209495280137
2011	2.291259435972381
2012	2.3127574066918632
2013	2.677595315326839
2014	2.887484387620985
2015	3.3011266828467942
2016	3.357501218229241
2017	3.6758424107846177
2018	4.13781734005149
2019	4.392715347021129
2020	4.872519493936824
2021	4.633683180012003