Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$1,842,674$5,682,519$5,968,870$17,567,890$2,919,493$4,619,320$7,197,116
Total$1,842,674$5,682,519$5,968,870$17,567,890$2,919,493$4,619,320$7,197,116