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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $716,289 | $247,098 | $1,076,983 | $1,707,911 | $1,105,734 | $431,914 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $750,836 | $143,479 | $987,699 | $3,027,169 | $2,332,743 | $7,570,770 |
| Total | $1,467,125 | $390,577 | $2,064,682 | $4,735,080 | $3,438,477 | $8,002,684 |
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