Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$2,022,270$1,063,128$638,728$3,617,725$4,956,119$5,628,252$4,622,054
Total$2,022,270$1,063,128$638,728$3,617,725$4,956,119$5,628,252$4,622,054