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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $5,945,819 | $5,404,513 | $4,801,696 | $4,332,799 | $4,037,207 | $4,617,271 | $4,542,159 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $146,655 | $164,736 | $793,234 | $652,655 | $244,821 | $225,033 | $805,572 |
| Total | $6,092,474 | $5,569,249 | $5,594,930 | $4,985,454 | $4,282,028 | $4,842,304 | $5,347,731 |
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