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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | $405 | $22,826 | $68,546 | $108,573 | $140,467 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | $12,000 | | $1,568 | | $791 | $10,000 |
| Hydantoin & its derivs. | $25,499 | $45,206 | $32,114 | $29,035 | $30,164 | $3,328 | $10,560 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $259,025 | $395,287 | $197,804 | $965,841 | $190,486 | $497,456 | $177,298 |
| Pyridine & its salts | | $210 | | $508 | $654 | $290 | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $5,818,825 | $852,783 | $3,767,673 | $1,735,310 | $1,743,478 | $3,071,431 | $2,937,205 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $301,524 | $419,928 | $354,903 | $569,367 | $1,190,857 | $471,968 | $752,154 |
| Melamine | $33,838 | | $15,476 | $106,500 | $64,913 | $4,408,206 | $495,673 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $463,390 | $550,029 | $878,507 | $846,055 | $738,336 | $1,039,728 | $1,902,738 |
| 6-Hexanelactam (epsilon-caprolactam) | $151,103 | $231,945 | $202,983 | $332,758 | $70,067 | $201,839 | $332,223 |
| Lactams (excl. of 2933.71 & 2933.72) | $45,000 | | $1,016,254 | $31,991 | $37,890 | $810,148 | $13,553 |
| Total | $7,098,204 | $2,507,388 | $6,466,119 | $4,641,759 | $4,135,391 | $10,613,758 | $6,771,871 |
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