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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $800,361 | $539,674 | $2,600 | $2,751,243 | $1,150,398 | $465,329 | $1,071,703 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $1,256,313 | $2,390,813 | $1,877,521 | $4,131,140 | $2,730,918 | $1,864,105 | $4,063,118 |
| Total | $2,056,674 | $2,930,487 | $1,880,121 | $6,882,383 | $3,881,316 | $2,329,434 | $5,134,821 |
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