Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$258,070$1,221,010$1,034,212$3,906,167$3,321,253$5,654,590$3,470,824
Total$258,070$1,221,010$1,034,212$3,906,167$3,321,253$5,654,590$3,470,824