Commodity2005200620072008200920102011
Electrical insulators, of glass $470$1,006   $14,885
Electrical insulators, of ceramics$27,076$202,628$55,583$133,138$76,907$285,873$80,668
Electrical insulators of any mat. other than glass & ceramics$1,705,814$2,223,260$2,282,594$4,663,869$2,618,927$2,535,519$1,362,278
Total$1,732,890$2,426,358$2,339,183$4,797,007$2,695,834$2,821,392$1,457,831