|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $14,753,000 | $21,837,000 | $30,442,000 | $35,889,000 | $18,670,000 | $21,215,000 | $25,702,000 |
| Total | $14,753,000 | $21,837,000 | $30,442,000 | $35,889,000 | $18,670,000 | $21,215,000 | $25,702,000 |
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