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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | | | $40 | $46 | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $19,702 | $376,963 | $185 | $2,786 | $656 | $1,361 | $800 |
| Hydantoin & its derivs. | $17,712 | $8,285 | $11,415 | $288 | $14,324 | $16,985 | $3,125 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $172,739 | $144,804 | $168,057 | $70,380 | $84,413 | $147,296 | $214,391 |
| Pyridine & its salts | $594 | $430,730 | $153,426 | $7,429 | $836,085 | $1,062,497 | $5,282,970 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $268,564 | $796,838 | $3,790,916 | $1,437,987 | $3,393,115 | $87,032 | $607,539 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $820,815 | $1,410,613 | $101,754 | $244,879 | $354,430 | $46,497 | $2,382,018 |
| Melamine | $24,276 | $166,036 | $116,822 | $75,697 | $27,205 | $251,742 | $227,740 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $463,838 | $247,662 | $784,384 | $248,111 | $684,654 | $78,117 | $94,486 |
| 6-Hexanelactam (epsilon-caprolactam) | | $15,080 | $13,568 | $16,671 | $19,377 | $26,997 | $27,610 |
| Lactams (excl. of 2933.71 & 2933.72) | $5,941 | $13,744 | $14,546 | $35,682 | $8,250 | $16,398 | $79,985 |
| Total | $1,794,181 | $3,610,755 | $5,155,073 | $2,139,910 | $5,422,549 | $1,734,968 | $8,920,664 |
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