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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $6,534,374 | $11,976,242 | $18,125,460 | $15,985,442 | $13,522,223 | $14,101,864 | $11,427,911 |
| Total | $6,534,374 | $11,976,242 | $18,125,460 | $15,985,442 | $13,522,223 | $14,101,864 | $11,427,911 |
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