Year	% of GNI
1970	2.8
1971	2.8
1972	2.8
1973	2.8
1974	2.8
1975	2.8
1976	2.8
1977	2.8
1978	2.8
1979	2.8
1980	2.8
1981	2.8
1982	2.8
1983	2.8
1984	2.8
1985	2.8
1986	2.8
1987	2.8
1988	2.8
1989	2.8
1990	2.8
1991	2.8
1992	2.8
1993	2.8
1994	2.8
1995	2.842804
1996	2.842804
1997	2.842804
1998	2.842804
1999	2.86531968770574
2000	2.88783537541148
2001	2.91035106311722
2002	2.93286675082295
2003	2.9553824385287
2004	2.97789812623444
2005	3.00041381394017
2006	3.02292950164592
2007	3.04544518935165
2008	3.06796087705739
2009	3.09047656476313
2010	3.11299225246887
2011	3.13550794017461
2012	3.15802362788035
2013	3.18053931558609
2014	3.15228442340002
2015	3.12402953121393
2016	3.57274109456264
2017	3.30390855184779
2018	2.96556705599494
2019	3.44651616742275
2020	2.79249297190928
2021	2.79249297190928