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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Multiple-walled insulating units of glass | $66,326,336 | $57,945,957 | $69,499,382 | $78,025,177 | $53,417,906 | $45,143,977 | $38,866,471 |
| Total | $66,326,336 | $57,945,957 | $69,499,382 | $78,025,177 | $53,417,906 | $45,143,977 | $38,866,471 |
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