Commodity2005200620072008200920102011
Multiple-walled insulating units of glass$3,261,000$689,138$1,368,482$2,048,800$1,438,158$1,518,949$3,480,832
Total$3,261,000$689,138$1,368,482$2,048,800$1,438,158$1,518,949$3,480,832