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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $21,806 | $70,874 | $41,338 | $62,267 | $8,534 | $55,523 | $36,204 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $46,852 | $55,748 | $58,081 | $177,495 | $138,910 | $253,938 | $386,784 |
| Total | $68,658 | $126,622 | $99,419 | $239,762 | $147,444 | $309,461 | $422,988 |
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