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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Railway/tramway sleepers (cross-ties) of wood, not impregnated | | | | | $1,309 | $167 | $2,176 |
| Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ... | $248,067 | $266,537 | $461,151 | $1,289,346 | $37,845 | $32,999 | $6,486 |
| Total | $248,067 | $266,537 | $461,151 | $1,289,346 | $39,154 | $33,166 | $8,662 |
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