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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $80,278 | $71,596 | $150,008 | $182,241 | $76,142 | $125,453 | $106,762 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $2,638 | $1,687 | $660 | $1,030 | $5,099 | $2,173 | $3,125 |
| Hydantoin & its derivs. | $540 | $5,470 | $3,241 | $6,930 | $62 | $9,425 | $14,319 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $49,501 | $78,001 | $57,266 | $68,970 | $124,601 | $142,288 | $136,658 |
| Pyridine & its salts | $849 | $3,725 | $64,118 | $3,714 | | $2,100 | $372 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $36,289 | $50,101 | $289,826 | $769,031 | $426,994 | $384,979 | $712,348 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $38,793 | $49,318 | $85,650 | $149,116 | $161,103 | $288,082 | $459,324 |
| Melamine | $1,855 | $2,513 | | $21 | $340 | $21 | $8,210 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $84,467 | $31,296 | $78,766 | $86,435 | $86,982 | $80,277 | $101,282 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | | $213 | | |
| Lactams (excl. of 2933.71 & 2933.72) | $826 | | $28 | $1,846 | $5,655 | $7,811 | $19,158 |
| Total | $296,036 | $293,707 | $729,563 | $1,269,334 | $887,191 | $1,042,609 | $1,561,558 |
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