Commodity20052006200720092010
Polystyrene, expansible, in primary forms$18,501$10,586   
Polystyrene other than expansible, in primary forms  $30,545  
Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms    $175,264
Polymers of styrene, in primary forms (excl. of 3903.11-3903.30)  $9,750$5,966 
Total$18,501$10,586$40,295$5,966$175,264