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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $75,389 | $49,555 | $20,901 | $45,162 | $2,882 | $42,485 | $1,691 |
| Hydantoin & its derivs. | | | $1,150 | | | $580 | $21,787 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | | | $25 | | | | |
| Pyridine & its salts | | | | | | | $3,500 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | | | | | $3,664 | $34,194 | $21,875 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | | | | | | | $306 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $30,694 | $28,142 | $33,914 | $59,881 | $28,585 | $30,660 | $44,814 |
| Total | $106,083 | $77,697 | $55,990 | $105,043 | $35,131 | $107,919 | $93,973 |
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