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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Phenazone (antipyrin) & its derivs. | $28,668 | $81,561 | $11,404 | $19,327 | $29,975 | $25,551 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $5,662 | $1,950 | | $1,125 | $17,850 | $15 |
| Hydantoin & its derivs. | | | | | | $1,021 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $8,468 | $30,512 | $20,713 | $19,741 | $17,441 | $26,720 |
| Pyridine & its salts | | $84 | $160 | $315 | $3,716 | $438 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $479 | $5,520 | $2,984 | $6,354 | $49,011 | $16,111 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $12 | $40,164 | $36,290 | $38,940 | $87,558 | $43,894 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $56 | $2,279 | $4,475 | $3,287 | $2,061 | $6,100 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | $73 | | |
| Lactams (excl. of 2933.71 & 2933.72) | $2,563 | $9,800 | $18,297 | $10,811 | $2,937 | $9,170 |
| Total | $45,908 | $171,870 | $94,323 | $99,973 | $210,549 | $129,020 |
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