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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | | | $220 | | |
| Hydantoin & its derivs. | $668 | $1,627 | $876 | | | $194 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $2,939 | | $245 | $760 | $6,658 | $1,669 |
| Pyridine & its salts | | | | | | $14,250 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $500 | | $560 | $1,050 | | $8,100 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | | $360 | | | | |
| Total | $4,107 | $1,987 | $1,681 | $2,030 | $6,658 | $24,213 |
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