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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Polystyrene, expansible, in primary forms | $75,381 | $101,519 | $34,672 | $121,939 | $63,332 | $108,974 | $25,924 |
| Polystyrene other than expansible, in primary forms | $642,427 | $907,476 | $986,883 | $1,231,708 | $719,282 | $668,110 | $660,798 |
| Styrene-acrylonitrile (SAN) copolymers, in primary forms | $34,902 | $35,019 | $41,945 | $92,662 | $172,059 | $314,615 | $453,459 |
| Acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms | $407 | | | | | $122,283 | $33,860 |
| Polymers of styrene, in primary forms (excl. of 3903.11-3903.30) | $835,237 | $904,215 | $622,747 | $1,118,847 | $1,376,313 | $876,237 | $470,381 |
| Total | $1,588,354 | $1,948,229 | $1,686,247 | $2,565,156 | $2,330,986 | $2,090,219 | $1,644,422 |
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