Commodity2005200620072008200920102011
Electrical insulators, of glass     $2,261$255
Electrical insulators, of ceramics$7,821$130,756$47,502$3,739$2,106$293$168,763
Electrical insulators of any mat. other than glass & ceramics$18,290$50,168$39,301$44,557$176,648$149,943$104,787
Total$26,111$180,924$86,803$48,296$178,754$152,497$273,805