|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Phenazone (antipyrin) & its derivs. | | | | $148 | | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $695 | | | | | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | | | | | $13,191 | $20,530 |
| Pyridine & its salts | | | | | $38 | $48 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | | | | $8,058 | | |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | | | | | | $2 |
| Melamine | $12,425 | $125,105 | $169,829 | $141,790 | $178,445 | $194,378 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | | | | | $681 | |
| 6-Hexanelactam (epsilon-caprolactam) | | | $45 | | $16 | |
| Lactams (excl. of 2933.71 & 2933.72) | | | | | $2 | |
| Total | $13,120 | $125,105 | $169,874 | $149,996 | $192,373 | $214,958 |
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