Year	% of GNI
1970	3.8706249701921567
1971	5.142894737289127
1972	5.564034073537427
1973	9.40798382724418
1974	2.8726103071063855
1975	3.2113662772615155
1976	3.1099136367424727
1977	4.797762197389379
1978	12.648331065258612
1979	12.23390913611641
1980	10.31290656034843
1981	8.75559353308575
1982	8.530477635385104
1983	6.929182265821171
1984	7.619039908781048
1985	7.257310346106028
1986	5.645263958698906
1987	2.1408648337235556
1988	2.736831465785265
1989	2.3299831838404623
1990	1.94293610005778
1991	4.634515447585386
1992	6.947042703500161
1993	1.8751435160926606
1994	5.362461455762576
1995	8.903481983070144
1996	7.359820401524865
1997	8.804767599461465
1998	6.400254447952708
1999	11.871971317996646
2000	7.257310045731072
2001	9.766235684047508
2002	7.861938899854357
2003	6.13643613524041
2004	3.218256846208599
2005	1.9430938975304075
2006	1.7453458921557214
2007	7.777276063333677
2008	19.552582603119426
2009	3.932619750403571
2010	3.607757808092102
2011	2.648239848400541
2012	2.7395623816134616
2013	7.278931087730639
2014	3.003702463976905
2015	3.5390647612065376
2016	2.830437585413013
2017	4.417334420512614
2018	4.513365255410606
2019	4.35255763471368
2020	9.690771869249744
2021	6.562228221988997
2022	2.582639709243831