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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | | $9,117 | | |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $28 | $502,383 | $274,292 | $103,943 | $40,726 |
| Total | $28 | $502,383 | $283,409 | $103,943 | $40,726 |
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