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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $15,700 | $59,441 | $39,235 | $89,353 | $13,202 | $2,896 | $377 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $2,096 | $5 | $9,016 | $5,935 | $8,190 | $10,975 | |
| Hydantoin & its derivs. | $29,310 | $15,570 | $7,473 | $3,075 | $6,051 | $226,943 | $85,109 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $836,601 | $589,721 | $786,338 | $1,719,603 | $2,284,441 | $1,090,601 | $257,932 |
| Pyridine & its salts | $688 | $5,492 | $1,980 | $11,184 | $2,229 | $108 | $514 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $8,593,733 | $9,835,505 | $12,691,080 | $10,119,334 | $13,021,468 | $16,725,279 | $13,820,980 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $441,242 | $497,846 | $400,325 | $215,387 | $685,126 | $51,604 | $190,703 |
| Melamine | $4,634 | | | | | $2,018 | $1,140 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $252,783 | $48,321 | $89,949 | $739,972 | $1,307,527 | $471,069 | $758,077 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | | $3 | | |
| Lactams (excl. of 2933.71 & 2933.72) | $46,849 | $2,968 | $14,531 | $26,254 | $52,465 | $2,431 | $21,854 |
| Total | $10,223,636 | $11,054,869 | $14,039,927 | $12,930,097 | $17,380,702 | $18,583,924 | $15,136,686 |
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