Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$26,073,653$33,551,697$39,393,915$33,549,375$29,435,649$21,054,476$24,781,083
Total$26,073,653$33,551,697$39,393,915$33,549,375$29,435,649$21,054,476$24,781,083