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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | $2,466 | $28,085 | $6,897 | $170,981 | $31,827 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $67,048 | $23,191 | $20,618 | | $1,664 | $4,016 | $10,382 |
| Hydantoin & its derivs. | | | | $1,637 | $33,712 | $12,242 | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $25,842 | $48,977 | $93,140 | $40,499 | $81,765 | $112,337 | $38,068 |
| Pyridine & its salts | | $59,834 | $1,776 | $18,014 | $2,273 | | $5,199 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $129,222 | $88,792 | $526,733 | $754,462 | $96,653 | $48,512 | $333,618 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $20,403 | $28,097 | $135,494 | $560,177 | $97,229 | $105,014 | $25,694 |
| Melamine | $214,928 | $279,403 | $195,340 | $50,252 | $58,256 | $643,147 | $492,189 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $6,697 | $104,176 | $10,217 | $45,145 | $29,905 | $106,504 | $139,841 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | | $36,995 | | |
| Lactams (excl. of 2933.71 & 2933.72) | | $7,367 | $48,988 | $14,295 | $71,567 | $145,881 | $95,353 |
| Total | $464,140 | $639,837 | $1,034,772 | $1,512,566 | $516,916 | $1,348,634 | $1,172,171 |
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