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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $31,467 | $2,880 | | $3,280 | | $24,423 | $34,855 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | | | $212 | | $1,029 | |
| Hydantoin & its derivs. | | | | | | $493 | $1,931 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $2,223 | | | | | $78,641 | $60,725 |
| Pyridine & its salts | | | | | | $2,250 | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $8,008 | $23,915 | $195,402 | $5,260 | $25,217 | | $88,654 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $7,018 | $2,456 | $60 | $4,987 | $5,680 | | $7,080 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | | | | $2,791 | $5,998 | $7,613 | $10,434 |
| Lactams (excl. of 2933.71 & 2933.72) | | | | | | | $89 |
| Total | $48,716 | $29,251 | $195,462 | $16,530 | $36,895 | $114,449 | $203,768 |
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