Year	% of total exports
2005	19.523939396789274
2006	15.964662011662536
2007	14.899748942463114
2008	14.855801098765292
2009	18.090939071646467
2010	16.716103175157677
2011	16.500133408114483
2012	14.915090862699515
2013	16.275741500912684
2014	16.499315757365913
2015	16.436208716981653
2016	12.991055017767431
2017	14.011798764064135
2018	15.054894242140282
2019	16.31378882476907
2020	6.63601887056125