Commodity200520062007200820092010
Polystyrene, expansible, in primary forms$42,999$74,930$62,738$351,525$32,240$174,964
Polystyrene other than expansible, in primary forms$18,750$107,558$258,225$365,273$178,288$147,438
Styrene-acrylonitrile (SAN) copolymers, in primary forms$38,750$71,600$58,483$75,044$4,220 
Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms$80$8,796$2,691$3,153$2,405 
Polymers of styrene, in primary forms (excl. of 3903.11-3903.30)$10,893$33,427 $3,341$9,687$3,805
Total$111,472$296,311$382,137$798,336$226,840$326,207