Commodity200520062007200820092010
Electrical insulators, of glass$568$34,820$6,632$641,159$36,251$37,055
Electrical insulators, of ceramics$183,312$580,083$790,575$538,000$723,575$225,860
Electrical insulators of any mat. other than glass & ceramics$375,370$679,538$486,110$552,682$794,088$530,460
Total$559,250$1,294,441$1,283,317$1,731,841$1,553,914$793,375