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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $9,128,225 | $10,234,076 | $14,525,671 | $17,553,182 | $17,769,246 | $17,090,067 | $21,160,889 |
| Total | $9,128,225 | $10,234,076 | $14,525,671 | $17,553,182 | $17,769,246 | $17,090,067 | $21,160,889 |
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