Year	% of total exports
1995	13.169377349397521
1996	14.516393714722195
1997	12.499454760623339
1998	12.068243184588395
1999	13.185786647675467
2000	12.151143616552604
2001	12.322192217664336
2002	12.754968624258167
2003	11.13742676751854
2004	11.448982140416565
2005	9.361312232751475
2006	10.897187812350216
2007	11.371640996439146
2008	10.803532270309272
2009	10.887078045720394
2010	10.471620088359298
2011	11.76069579172278
2012	12.606838943627025
2013	14.796672080375577
2014	13.802582275980798
2015	16.522981461389666
2016	17.47694227463265
2017	18.72857093459649
2018	18.681195453495715
2019	19.875056257100496
2020	5.953924893122689