Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$7,764,393$3,370,544$9,082,587$7,095,470$5,111,725$4,687,225$6,571,459
Total$7,764,393$3,370,544$9,082,587$7,095,470$5,111,725$4,687,225$6,571,459