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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Polystyrene, expansible, in primary forms | $351,416 | $766,797 | $1,202,202 | $631,979 | $267,929 | $189,470 |
| Polystyrene other than expansible, in primary forms | $92,133 | $127,524 | $98,883 | $101,937 | $113,084 | $155,798 |
| Styrene-acrylonitrile (SAN) copolymers, in primary forms | $2,442 | $656 | | $1,249 | | |
| Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms | $4,107 | $4,403 | $2,341 | $2,286 | $2,043 | $2,851 |
| Polymers of styrene, in primary forms (excl. of 3903.11-3903.30) | $8,406 | $24,992 | $5,084 | $12,672 | $3,589 | $18,937 |
| Total | $458,504 | $924,372 | $1,308,510 | $750,123 | $386,645 | $367,056 |
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