Year	% of GNI
1970	4.69431
1971	4.7
1972	4.5
1973	4.2
1974	4
1975	3.8360162
1976	3.8360162
1977	2.7
1978	2.8
1979	3
1980	2.2
1981	2.6
1982	4.6
1983	4.4
1984	4.2
1985	3.8
1986	3.6
1987	4.1
1988	3.7
1989	4.6
1990	4.6
1991	4.6
1992	4.6
1993	4.6
1994	4.6
1995	4.6
1996	4.6
1997	4.6
1998	4.6
1999	4.6
2000	4.6
2001	4.6
2002	4.6
2003	4.6
2004	4.6
2005	4.6
2006	4.6
2007	4.6
2008	4.6
2009	4.6
2010	4.6
2011	4.6
2012	4.6
2013	4.6
2014	4.6
2015	4.6
2016	4.6
2017	4.6
2018	4.6
2019	4.6
2020	4.6
2021	4.6