|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Worked slate & arts. of slate/agglom. slate | $16,236,835 | $16,650,119 | $15,523,438 | $13,834,006 | $9,122,213 | $9,134,477 | $9,344,559 |
| Total | $16,236,835 | $16,650,119 | $15,523,438 | $13,834,006 | $9,122,213 | $9,134,477 | $9,344,559 |
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