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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | $770 | $4,500 | | $1,705 | $80,887 | $26,500 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $1,176 | | $115,148 | | $7,700 | | $87,160 |
| Hydantoin & its derivs. | $1,140 | $38,977 | $59,566 | $14,859 | $8,736 | $21,729 | $20,788 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $46,177 | $27,369 | $72,228 | $78,097 | $149,805 | $61,018 | $45,766 |
| Pyridine & its salts | $7,310 | $8,154 | $24,674 | | | $25,043 | $7,700 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $68,895 | $667,386 | $2,839,701 | $3,103,856 | $4,520,687 | $16,570,398 | $8,232,928 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $29,492 | $16,032 | $58,380 | $49,808 | $28,281 | $63,915 | $241,487 |
| Melamine | | $70,031 | $47,782 | $33,000 | $54,430 | $41,111 | $22,885 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $159,316 | $26,284 | $324,124 | $578,536 | $759,272 | $568,341 | $65,760 |
| 6-Hexanelactam (epsilon-caprolactam) | $22,228,481 | $17,808,351 | $22,160,412 | $25,366,415 | $19,685,982 | $23,155,744 | $29,299,506 |
| Lactams (excl. of 2933.71 & 2933.72) | $87 | $5,915 | $1,520 | $3,460 | $13,701 | $2,543 | $104,981 |
| Total | $22,542,074 | $18,669,269 | $25,708,035 | $29,228,031 | $25,230,299 | $40,590,729 | $38,155,461 |
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