Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$1,642,613$3,080,978$4,905,357$4,389,995$3,577,120$3,235,747$3,255,049
Total$1,642,613$3,080,978$4,905,357$4,389,995$3,577,120$3,235,747$3,255,049