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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | $506 | | $572,545 | $8 | $26,795 | $90,524 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | $125 | $2,069 | | $183,135 | $769,934 | $50,424 |
| Hydantoin & its derivs. | $269 | $19,166 | | | | $279 | $2,606 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $276,858 | $541,341 | $217,224 | $743,267 | $1,079,882 | $804,186 | $565,325 |
| Pyridine & its salts | | $1,431 | $175 | $70 | $751 | | $3,308 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $1,745 | $1,174 | $35,888 | $85,439 | $60,807 | $94,262 | $101,210 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $144,783 | $318,739 | $425,799 | $428,639 | $553,852 | $559,204 | $1,139,294 |
| Melamine | | | $1,683 | | | $2,075 | $4,279 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $123,807 | $61,703 | $71,091 | $127,045 | $25,827 | $73,466 | $24,681 |
| 6-Hexanelactam (epsilon-caprolactam) | | $1,361 | | | | $4,287 | |
| Lactams (excl. of 2933.71 & 2933.72) | | | $228 | $580 | | $6,568 | |
| Total | $547,462 | $945,546 | $754,157 | $1,957,585 | $1,904,262 | $2,341,056 | $1,981,651 |
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