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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | $60,339 | $315,682 | $564,881 | $39,377 | $17,324 | $15,012 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $636,790 | $3,339,151 | $4,503,760 | $5,040,432 | $2,039,266 | $5,095,733 | $3,347,844 |
| Total | $636,790 | $3,399,490 | $4,819,442 | $5,605,313 | $2,078,643 | $5,113,057 | $3,362,856 |
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