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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | | | | $1,435 | |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $1,000 | $2,421 | $400 | $14,062 | $5,635 | $9,079 |
| Total | $1,000 | $2,421 | $400 | $14,062 | $7,070 | $9,079 |
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