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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | | | $9,142 | | |
| Hydantoin & its derivs. | | $775 | | $720 | | $1,925 | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $317 | | $4,763 | $215,158 | $37,060 | $3,373 | $9,456 |
| Pyridine & its salts | $21,141 | | | | | | $147 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $7,196 | | $7,625 | $14,965 | | $282 | $8,098 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $17,586 | $47,507 | $41,827 | $79,210 | $17,079 | $26,984 | $11,040 |
| Melamine | | | | | | $277 | |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $11,050 | | $14,736 | $7,488 | | | |
| Lactams (excl. of 2933.71 & 2933.72) | | $44 | | | | | $117 |
| Total | $57,290 | $48,326 | $68,951 | $317,541 | $63,281 | $32,841 | $28,858 |
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