|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $79,365,315 | $70,851,608 | $60,995,939 | $38,439,232 | $23,980,126 | $21,969,265 | $19,778,460 |
| Total | $79,365,315 | $70,851,608 | $60,995,939 | $38,439,232 | $23,980,126 | $21,969,265 | $19,778,460 |
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