Commodity200520062007200820092010
Polystyrene, expansible, in primary forms$1,890,783$2,788,569$2,673,261$2,380,118$1,699,561$1,356,488
Polystyrene other than expansible, in primary forms$343,953$85,760$112,259$1,303$84,780$986
Styrene-acrylonitrile (SAN) copolymers, in primary forms$156,221$216,002   $36,987
Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms$23,926$4,542    
Polymers of styrene, in primary forms (excl. of 3903.11-3903.30)$1,148,775$850,067$1,462,679$1,396,734$496,876$995,147
Total$3,563,658$3,944,940$4,248,199$3,778,155$2,281,217$2,389,608