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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | $8,360,494 | $10,480,372 | $8,766,574 | $8,723,501 | $7,278,527 | $7,455,422 | $8,130,230 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $3,715,075 | $3,778,964 | $3,402,084 | $2,672,011 | $2,280,282 | $1,396,766 | $1,927,781 |
| Total | $12,075,569 | $14,259,336 | $12,168,658 | $11,395,512 | $9,558,809 | $8,852,188 | $10,058,011 |
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