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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | $18,346 | $11,013 | $18,270 | $19,004 | $16,626 | $33,177 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $22,979 | $9,287 | $36,000 | $15,201 | $38,078 | $17,786 | $65,850 |
| Hydantoin & its derivs. | $40,381 | $96,431 | $32,530 | $24,022 | $2,784 | $20,624 | $13,403 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $92,308 | $120,114 | $143,502 | $343,010 | $109,865 | $133,456 | $142,271 |
| Pyridine & its salts | $4,374 | $18,694 | $17,291 | $78,107 | | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $2,274,080 | $362,578 | $237,245 | $221,503 | $106,920 | $312,687 | $152,712 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $38,238 | $56,605 | $36,223 | $92,393 | $60,873 | $50,453 | $162,906 |
| Melamine | $936 | $1,235 | $1,450 | $10,169 | | $13,031 | $513 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $79,698 | $144,197 | $179,066 | $133,713 | $124,139 | $494,809 | $427,490 |
| Lactams (excl. of 2933.71 & 2933.72) | | | | | $992 | $645 | |
| Total | $2,552,994 | $827,487 | $694,320 | $936,388 | $462,655 | $1,060,117 | $998,322 |
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