Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$2,910,000$4,025,000$5,093,000$3,837,000$3,882,000$3,459,000$3,097,000
Total$2,910,000$4,025,000$5,093,000$3,837,000$3,882,000$3,459,000$3,097,000