Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$6,663,593$2,785,141$8,422,575$7,074,724$4,964,834$3,387,336$5,222,915
Total$6,663,593$2,785,141$8,422,575$7,074,724$4,964,834$3,387,336$5,222,915