|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Slates & boards, with writing/drawing surfaces, whether or not framed | $16,451,777 | $18,643,629 | $23,832,528 | $28,221,756 | $23,266,320 | $26,876,687 | $26,794,683 |
| Total | $16,451,777 | $18,643,629 | $23,832,528 | $28,221,756 | $23,266,320 | $26,876,687 | $26,794,683 |
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