|
| Commodity | 2006 | 2007 | 2008 |
| Phenazone (antipyrin) & its derivs. | | $497 | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $74,167 | $38,986 | $6,010 |
| Hydantoin & its derivs. | | | $93 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $12,308 | $39,769 | $297,830 |
| Pyridine & its salts | | $4,123 | $465 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $32,108 | $135,736 | $268,448 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $1,386 | $61,574 | $79,428 |
| Melamine | $56,522 | $42,718 | $3,407 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $422,395 | $386,856 | $434,352 |
| 6-Hexanelactam (epsilon-caprolactam) | $23,510 | | |
| Lactams (excl. of 2933.71 & 2933.72) | | $271 | |
| Total | $622,396 | $710,530 | $1,090,033 |
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