Year % of total merchandise exports 2006 0.021164649223047602 2007 0.049963318978544155 2008 0.04647649432086458 2009 0.10589345913464546 2010 0.02860579549082433 2011 0.01142166564197705 2012 0.014724758557167785 2013 0.1094055325347559 2014 0.043630188830503215 2015 0.04036914852100391 2016 0.06954562736655981 2017 0.04258998348575024 2018 0.002543999998768722 2019 0.14684852404565765 2020 0.5019660413784172