Year	% of GNI
2006	-2.00907213558986
2007	-10.5084328641171
2008	-17.3515001038344
2009	-16.4937319516571
2010	-11.5962385520167
2011	-14.5249727060415
2012	-19.1491001360895
2013	-12.3155573795159
2014	-6.22729805595767
2015	-8.15089710628639
2016	-7.78400464448126
2017	-6.42699038230585
2018	-25.2979795006405