|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Slates & boards, with writing/drawing surfaces, whether or not framed | $27,532,943 | $35,651,998 | $18,917,240 | $946,143 | $769,612 | $1,945,513 | $5,232,965 |
| Total | $27,532,943 | $35,651,998 | $18,917,240 | $946,143 | $769,612 | $1,945,513 | $5,232,965 |
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