Commodity200520062007200820092010
Polystyrene, expansible, in primary forms$143,475$1,026,910$1,498,049$1,885,424$854,458$1,552,349
Polystyrene other than expansible, in primary forms$726,744$762,770$2,166,658$1,994,898$1,401,975$2,292,507
Styrene-acrylonitrile (SAN) copolymers, in primary forms$290,996$259,862$114,728$563,797$258,055$388,945
Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms$15,254$12,629$10,208$4,754$19,503 
Polymers of styrene, in primary forms (excl. of 3903.11-3903.30)$1,450,270$1,145,571$1,457,729$1,223,793$1,417,176$1,706,831
Total$2,626,739$3,207,742$5,247,372$5,672,666$3,951,167$5,940,632