Commodity2005200620072008
Polystyrene, expansible, in primary forms$269,450$714,815$912,017$767,735
Polystyrene other than expansible, in primary forms$320,356$377,844$256,275$232,231
Styrene-acrylonitrile (SAN) copolymers, in primary forms$51,499$22,796$1,018$2,418
Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms$41,705$58$65,500 
Polymers of styrene, in primary forms (excl. of 3903.11-3903.30)$330,552$405,101$229,654$131,338
Total$1,013,562$1,520,614$1,464,464$1,133,722