|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Slates & boards, with writing/drawing surfaces, whether or not framed | $7,160,659 | $10,074,256 | $15,692,053 | $16,928,889 | $19,451,508 | $23,419,708 |
| Total | $7,160,659 | $10,074,256 | $15,692,053 | $16,928,889 | $19,451,508 | $23,419,708 |
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