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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | | | $1,782 | | $1,670 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | | | | | $1 | |
| Hydantoin & its derivs. | | | | | | | $96,853 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $2,144,057 | $4,715,849 | $4,485,897 | $5,881,562 | $6,963,519 | $5,682,266 | $8,837,205 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $6,150,593 | $4,527,313 | $4,676,139 | $4,943,020 | $5,021,786 | $3,749,525 | $4,462,795 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $87,103 | $508,091 | $409,727 | $157,533 | $29,254 | $12,730 | $23,550 |
| Melamine | | | | | | $7,160 | |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $3,360,385 | $934,732 | $38,164 | $53,178 | $12,896 | $16,849 | $92,546 |
| 6-Hexanelactam (epsilon-caprolactam) | | | $9,576,702 | | $328,785 | $18,446 | $4,769,491 |
| Lactams (excl. of 2933.71 & 2933.72) | | | | | $5,925 | $1,991 | $490,289 |
| Total | $11,742,138 | $10,685,985 | $19,186,629 | $11,035,293 | $12,363,947 | $9,488,968 | $18,774,399 |
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