Year	% of merchandise exports
1999	0.042685392107360214
2000	0.2540085835897665
2005	0.07172473142128993
2006	0.0015615721954291134
2007	0.018946493748333723
2008	1.9323512932605882
2009	0.1714526971691565
2011	0.021798720227606767
2012	0.010481593729707762