|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pyridine & its salts | $86 | $3,259 | $79 | | | | $175 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $4,320 | $1,059 | $8,310 | $7,051 | $17,591 | $17,308 | $9,049 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $8 | | | | | | $2,107 |
| Total | $4,414 | $4,318 | $8,389 | $7,051 | $17,591 | $17,308 | $11,331 |
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