Year	% of total exports
2005	6.61164841899537
2006	5.221892944282792
2007	6.339588968193624
2008	6.638491252895908
2009	7.865585353271283
2010	5.236314501520834
2011	4.907774740413008
2012	4.819641643959013
2013	4.7817718609597035
2014	4.847849295636235
2015	4.884073869160103
2016	3.0249270004036855
2017	3.0301093256372926
2018	4.856399497371294
2019	5.666523986106874
2020	2.510377931627291