Year	% of total exports
2001	7.493962002477509
2002	7.42802128805406
2003	7.142657607432037
2004	6.926510572495652
2005	8.418368507277608
2006	7.397340359208428
2007	7.533000190010465
2008	7.042710954200941
2009	8.306972415888744
2010	6.880291897780089
2011	6.4584024923979335
2012	6.576181408823854
2013	7.149195929427192
2014	7.231248393554404
2015	7.720933007186786
2016	7.666366894250744
2017	7.686300415209379
2018	7.57028067903357
2019	7.904452269852996