|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Worked slate & arts. of slate/agglom. slate | $157,409,611 | $170,548,561 | $154,704,544 | $123,271,009 | $75,208,895 | $75,364,889 | $74,563,087 |
| Total | $157,409,611 | $170,548,561 | $154,704,544 | $123,271,009 | $75,208,895 | $75,364,889 | $74,563,087 |
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