|
| Commodity | 2005 | 2006 | 2007 | 2009 |
| Phenazone (antipyrin) & its derivs. | $937 | $2,450 | $3,698 | $5,581 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $109,530 | $26,095 | $38,143 | $6,629 |
| Hydantoin & its derivs. | $1,800 | | | $714 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $56,305 | $41,435 | $46,506 | $30,130 |
| Pyridine & its salts | | $4,875 | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $165,498 | $36,538 | $18,708 | $150,211 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $211,791 | $126,658 | $114,854 | $93,613 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $4,484 | $19,396 | $40,505 | $20,931 |
| Total | $550,345 | $257,447 | $262,414 | $307,809 |
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