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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $2,456,498 | $4,504,117 | $7,249,959 | $11,796,304 | $4,080,425 | $4,889,536 | $7,584,088 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $9,713,147 | $8,364,273 | $9,829,059 | $7,501,907 | $5,009,825 | $2,945,316 | $4,647,357 |
| Total | $12,169,645 | $12,868,390 | $17,079,018 | $19,298,211 | $9,090,250 | $7,834,852 | $12,231,445 |
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