|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Slates & boards, with writing/drawing surfaces, whether or not framed | $53,158,855 | $78,014,844 | $141,735,957 | $200,289,423 | $198,383,960 | $253,629,845 | $294,259,153 |
| Total | $53,158,855 | $78,014,844 | $141,735,957 | $200,289,423 | $198,383,960 | $253,629,845 | $294,259,153 |
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