Year	% of total exports
1995	10.84376255596685
1996	9.991922875039348
1997	9.705972368007492
1998	6.429549892420945
1999	5.493065381401457
2000	5.077383399169882
2001	5.359202349641559
2002	5.398388405113306
2003	5.562208170635968
2004	5.647780675712368
2005	5.468578613095941
2006	4.923168951126291
2007	4.759876356049043
2008	4.6566253745889945
2009	5.000433668849509
2010	3.9342015881766916
2011	3.3346329582232865
2012	3.3622996923126682
2013	3.5064742293855122
2014	3.8716941722123726
2015	4.526005746475397
2016	5.048468222059057
2017	5.01662926638973
2018	4.84466653434979
2019	5.117182449378109
2020	2.567850880170703