Year	% of GNI
1990	-23.505091468086
1991	-14.8972073079419
1992	-29.1966314343616
1993	-19.589527348553
1994	-14.9609563152314
1995	-29.4230472128105
1996	-21.5858588987122
1997	-28.2492484384503
1998	-30.072869171099
1999	-20.9457349091302
2000	-30.5740851978966
2001	-16.7430263949279
2002	-12.955729208296
2003	-16.1051338190958
2004	-13.5033602019167
2005	-9.79524575942553
2006	-10.190905152335
2007	-5.75720024951456
2008	-6.11125057847226
2009	-8.47904848275665
2010	5.95769517817113
2011	-14.7055244862736
2012	-4.09097782090279
2013	-24.8150882143865
2014	2.75354798151218
2015	-16.2123114741587
2016	-33.6330700182195
2017	-16.7537320973661
2018	-21.4278982177668
2019	-11.7801131485764
2020	-9.65505645472094