Year	% of GNI
1970	1.8591363
1971	1.8591363
1972	1.8591363000000003
1973	1.8591363
1974	1.8591363
1975	1.8591363000000003
1976	1.8591363
1977	1.8591363
1978	3.5
1979	2.6
1980	1.8591363
1981	1.9
1982	1.5
1983	2.3
1984	1.733942155303151
1985	1.5365204014663612
1986	1.4107238903829142
1987	1.070552023166043
1988	1.1754862395853174
1989	2.1335707460849678
1990	3.1598339001039237
1991	3.509540223151775
1992	3.701981404203216
1993	3.9745860434902687
1994	4.263610180815211
1995	3.605501296449732
1996	3.850600142421203
1997	3.806587081599062
1998	3.5132831209629876
1999	3.168124158374254
2000	2.8733640015178654
2001	3.3194109657032134
2002	3.1531449790881467
2003	3.1198711493365407
2004	3.3614934762252067
2005	3.335863185680321
2006	3.3599073862479365
2007	3.5100565180907832
2008	3.646141054288824
2009	3.7761837252230848
2010	3.9512459271017653
2011	4.0718514222071205
2012	4.167505869719647
2013	4.088619716778543
2014	3.9501363314757967
2015	3.8083122679746406
2016	4.024556007527648
2017	3.8420823444953105
2018	3.7551606467114125
2019	4.028942076368501
2020	4.0589622606078235
2021	4.059886394789749