|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Worked slate & arts. of slate/agglom. slate | $65,583,889 | $80,927,294 | $94,243,918 | $98,320,001 | $65,322,403 | $69,355,301 | $57,428,641 |
| Total | $65,583,889 | $80,927,294 | $94,243,918 | $98,320,001 | $65,322,403 | $69,355,301 | $57,428,641 |
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