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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $4,526 | $84,141 | $65,567 | $97,511 | $1,274 | $138,299 | $127,085 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $9,884 | $1,422 | $2,254 | $2 | $41,730 | $22,332 | $42,246 |
| Hydantoin & its derivs. | | $2,897 | $2,335 | | $4,167 | $10,167 | $1,487 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $491,447 | $555,047 | $458,428 | $840,421 | $691,757 | $955,890 | $710,710 |
| Pyridine & its salts | | $382 | $136 | $1,738 | $1,501 | $1,344 | $1,505 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $82,987 | $41,804 | $26,357 | $119,628 | $144,992 | $196,643 | $325,886 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $318,326 | $371,697 | $704,128 | $599,234 | $572,727 | $817,225 | $483,455 |
| Melamine | | | | | | $4,346 | $2,438 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $31,232 | $39,266 | $109,021 | $55,972 | $52,252 | $83,220 | $139,617 |
| 6-Hexanelactam (epsilon-caprolactam) | $243 | $259 | | $173 | | | $164 |
| Lactams (excl. of 2933.71 & 2933.72) | | | $144 | $12,706 | $29,374 | | $25,566 |
| Total | $938,645 | $1,096,915 | $1,368,370 | $1,727,385 | $1,539,774 | $2,229,466 | $1,860,159 |
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