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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $11,808 | $579 | $2,163 | | $141,734 | $78,292 | $393 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $66,130 | $47,315 | $94,200 | $23,046 | $2,049 | $123,088 | $46,587 |
| Hydantoin & its derivs. | $1,472 | $2,290 | $15,144 | $25,874 | $36,074 | $74,013 | $120,349 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $83,326 | $93,734 | $162,713 | $208,420 | $184,925 | $308,196 | $222,553 |
| Pyridine & its salts | $32,780 | $81,590 | $107,792 | $11,134 | $61,334 | $82,074 | $88,506 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $114,533 | $116,080 | $189,236 | $1,008,827 | $179,919 | $398,043 | $702,996 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $775,413 | $155,844 | $208,845 | $213,821 | $220,635 | $200,262 | $258,929 |
| Melamine | $1,633 | $67,827 | $144,516 | $279,431 | $158,782 | $482,475 | $478,789 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $78,818 | $28,644 | $42,199 | $67,447 | $181,728 | $147,250 | $130,221 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | $5,422 | $5,713 | $24,460 | $55,046 |
| Lactams (excl. of 2933.71 & 2933.72) | $16,869 | $11,589 | $15,216 | $23,775 | $15,224 | $39,152 | $46,241 |
| Total | $1,182,782 | $605,492 | $982,024 | $1,867,197 | $1,188,117 | $1,957,305 | $2,150,610 |
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