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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Polystyrene, expansible, in primary forms | $2,144 | $11,328 | $6,339 | $14,643 | $5,352 | $35,065 | $18,486 |
| Polystyrene other than expansible, in primary forms | $115,847 | $16,680 | $81,775 | $2,986 | $8,576 | $20,379 | $3 |
| Styrene-acrylonitrile (SAN) copolymers, in primary forms | | | | | | | $43 |
| Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms | | | | $1,020 | $1,663 | $700 | $1,400 |
| Polymers of styrene, in primary forms (excl. of 3903.11-3903.30) | $9,238 | $27,716 | $42,160 | $212,740 | $322,298 | $540,292 | $278,372 |
| Total | $127,229 | $55,724 | $130,274 | $231,389 | $337,889 | $596,436 | $298,304 |
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