|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Worked slate & arts. of slate/agglom. slate | $26,975,434 | $14,434,574 | $19,133,285 | $13,865,328 | $14,547,622 | $12,383,631 | $11,831,707 |
| Total | $26,975,434 | $14,434,574 | $19,133,285 | $13,865,328 | $14,547,622 | $12,383,631 | $11,831,707 |
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