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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | | $135,390 | $655 | $17,785 | |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $1 | $45,394 | $92,356 | $109,912 | $10,568 | $59,520 |
| Total | $1 | $45,394 | $227,746 | $110,567 | $28,353 | $59,520 |
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