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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Phenazone (antipyrin) & its derivs. | | $115 | | | | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $5,001 | $3,002 | $2,007 | $5,983 | $82,388 | $4,028 |
| Hydantoin & its derivs. | $4,414 | $2,658 | $2,550 | $6,259 | $8,634 | $5,044 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $52 | $10,510 | $2,588 | $47 | $57 | $65,992 |
| Pyridine & its salts | $4,123 | $298 | $434 | | $110 | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $353,712 | $42,794 | $113,973 | $41,542 | $60,311 | $58,786 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $15,915 | $20,503 | $105,292 | $50,747 | $25,612 | $27,218 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $51,437 | $31,237 | $34,179 | $25,888 | $58,858 | $45,364 |
| 6-Hexanelactam (epsilon-caprolactam) | | | $48 | | | |
| Lactams (excl. of 2933.71 & 2933.72) | | $2,622 | | $328 | $557 | |
| Total | $434,654 | $113,739 | $261,071 | $130,794 | $236,527 | $206,432 |
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