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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $578,475 | $1,148,288 | $1,654,059 | $2,349,205 | $1,816,936 | $399,529 | $557,989 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | | $123,479 | | | | $2,348 | $157,122 |
| Total | $578,475 | $1,271,767 | $1,654,059 | $2,349,205 | $1,816,936 | $401,877 | $715,111 |
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