|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Slates & boards, with writing/drawing surfaces, whether or not framed | $2,730,117 | $3,162,155 | $3,605,736 | $3,297,186 | $3,513,554 | $3,941,377 | $4,923,545 |
| Total | $2,730,117 | $3,162,155 | $3,605,736 | $3,297,186 | $3,513,554 | $3,941,377 | $4,923,545 |
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