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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $7,541,410 | $11,086,558 | $21,931,737 | $22,033,439 | $16,845,970 | $9,655,494 | $11,875,441 |
| Total | $7,541,410 | $11,086,558 | $21,931,737 | $22,033,439 | $16,845,970 | $9,655,494 | $11,875,441 |
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