Year	% of total exports
1995	3.193547559521618
1996	2.5518004724565966
1997	3.155201397762084
1998	5.1732292758885166
1999	5.152631700837355
2000	2.834287918877522
2001	1.6555187437816996
2002	2.9242948329135916
2003	2.5117056448414683
2004	1.7521083204734489
2005	0.2320435295933856
2007	0.37064289655809857
2008	0.28672426218428904
2009	0.3959458432363917
2010	0.952867218343879
2011	0.24244902290552628
2012	0.3931447602388012
2013	0.635491527522712
2014	0.5156570601988045
2015	0.5324715294832509