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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $1,476,087 | $1,164,277 | $692,564 | $1,054,370 | $366,132 | $39,486 | $8,673 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $32,904 | $18,915 | $8,577 | $1,097,628 | $2,480,497 | $7,536,684 | $7,286,501 |
| Hydantoin & its derivs. | $30,550 | $50,245 | $32,109 | $33,445 | $5,881 | | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $695,816 | $614,435 | $365,149 | $504,092 | $280,661 | $222,870 | $128,775 |
| Pyridine & its salts | | $7 | $847 | | | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $16,092,230 | $14,989,050 | $12,979,952 | $14,338,975 | $18,717,852 | $20,555,328 | $27,024,631 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $6,685,158 | $4,723,775 | $6,816,923 | $5,143,137 | $5,790,535 | $6,646,470 | $6,158,583 |
| Melamine | $121,583 | $240,088 | $657,010 | $684,769 | $141,808 | $329,178 | $248,165 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $83,732 | $138,599 | $155,681 | $170,307 | $125,732 | $118,979 | $207,634 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | | | | $43 |
| Lactams (excl. of 2933.71 & 2933.72) | $440,615 | $353,395 | $1,582,635 | $2,477,730 | $737,048 | $760,162 | $1,064,765 |
| Total | $25,658,675 | $22,292,786 | $23,291,447 | $25,504,453 | $28,646,146 | $36,209,157 | $42,127,770 |
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