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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $33,636 | $11,317 | $14,258 | $28,851 | $73,643 | $77,582 | $228,218 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $1,304,699 | $3,068,329 | $2,311,718 | $2,556,189 | $3,742,691 | $2,623,451 | $1,051,604 |
| Total | $1,338,335 | $3,079,646 | $2,325,976 | $2,585,040 | $3,816,334 | $2,701,033 | $1,279,822 |
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