Year	% of total exports
1995	4.205964581972776
1996	4.318267046881605
1997	4.173417491867141
1998	4.367412576530428
1999	4.245032331978781
2000	3.9713261174640637
2001	4.093621899840713
2002	4.2012443081643935
2003	3.71752474190111
2004	3.964882814097753
2005	3.688259962794887
2006	3.621793985670829
2007	3.580550310843289
2008	3.3954322260950383
2009	3.973054321151659
2010	3.9293567452137497
2011	3.6567012814316984