Year	% of total exports
2011	3.663063428713164
2012	5.053329462052147
2013	5.848712401476738
2014	7.541957514502401
2015	13.144263856641064
2016	17.373407670470687
2017	18.493177362773423
2018	14.85847606088042
2019	16.999080728731418
2020	20.185176435047644