|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Worked slate & arts. of slate/agglom. slate | $19,501,984 | $24,053,966 | $16,343,061 | $13,380,795 | $23,945,562 | $8,617,795 | $8,535,300 |
| Total | $19,501,984 | $24,053,966 | $16,343,061 | $13,380,795 | $23,945,562 | $8,617,795 | $8,535,300 |
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