Year	% of total exports
1995	9.685998981835537
1996	9.428508659674417
1997	11.480904499600218
1998	13.178296090514623
1999	8.100496876730237
2000	5.175129682498529
2001	5.404650862385719
2002	5.612930877848484
2003	4.685368201035714
2004	4.2940678791735785
2005	3.8945513929344684
2006	4.068301291820605
2007	3.9460516885828087
2008	3.6750450201917504
2009	4.623352099194052
2010	3.6715558293158668
2011	3.4549374532106816
2012	3.715936287114106
2013	3.5778547579783546
2014	4.5004399034557885
2015	6.159989323714095
2016	6.899127236638778
2017	7.682612819694993
2018	6.937939921926548
2019	6.111221924953101