|
| Commodity | 2005 | 2007 | 2008 |
| Phenazone (antipyrin) & its derivs. | | $8,486 | $162,701 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | | $69,474 | $45,257 |
| Pyridine & its salts | | $94,301 | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $87,120 | $575,079 | $1,078,413 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $87,459 | $87,696 | $280,151 |
| Melamine | $111,288 | $539,385 | $201,368 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $45,380 | $4,383 | $52,970 |
| 6-Hexanelactam (epsilon-caprolactam) | $1,459 | | |
| Total | $332,706 | $1,378,804 | $1,820,860 |
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