Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$1,893,144$2,213,889$2,408,319$1,677,370$999,546$2,441,788$2,933,561
Total$1,893,144$2,213,889$2,408,319$1,677,370$999,546$2,441,788$2,933,561