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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Polystyrene, expansible, in primary forms | $5,340 | $6,273 | | $30,450 | $5 | | |
| Polystyrene other than expansible, in primary forms | $329,838 | $144,369 | $181,935 | $107,512 | $149,864 | $39,379 | $75,409 |
| Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms | $10,647 | $532 | $127,678 | $246,962 | $218,960 | $263,465 | $160,040 |
| Polymers of styrene, in primary forms (excl. of 3903.11-3903.30) | $34 | $187,794 | $562,628 | $512,002 | $467,064 | $36,563 | $12,573 |
| Total | $345,859 | $338,968 | $872,241 | $896,926 | $835,893 | $339,407 | $248,022 |
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