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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $5,764,137 | $6,668,586 | $6,961,401 | $10,344,713 | $6,703,652 | $7,423,400 | $6,375,927 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $1,194,528 | $1,386,215 | $1,071,110 | $1,062,658 | $719,423 | $685,297 | $835,265 |
| Total | $6,958,665 | $8,054,801 | $8,032,511 | $11,407,371 | $7,423,075 | $8,108,697 | $7,211,192 |
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