Year	% of total exports
2005	0.7733051728295486
2006	0.5504022793129684
2007	1.3718980889830403
2008	1.3292530732269725
2009	3.4404303420969806
2010	3.1798424366092184
2011	1.887135481055923
2012	1.6900247320692496
2013	1.801030418721071
2014	2.1787741528582076
2015	5.025669607343033
2016	6.662452807625946
2017	4.652204405944156
2018	2.1603229389094176
2019	4.041487960460232
2020	1.884896942519525