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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $15,711 | $2,533 | $1,104 | $1,650 | $1,789 | $1,734 | $902 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $221,557 | $347,714 | $382,934 | $568,940 | $490,325 | $602,738 | $1,462,464 |
| Hydantoin & its derivs. | | | $732 | $960 | | $329 | $577 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $97,136 | $72,066 | $102,250 | $162,260 | $130,117 | $171,856 | $85,803 |
| Pyridine & its salts | $31,022 | $1,843 | | | $45 | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $9,187 | $31,483 | $34,625 | $59,950 | $64,656 | $60,527 | $134,808 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $33,813 | $52,005 | $54,866 | $100,410 | $155,064 | $68,572 | $168,856 |
| Melamine | $7,253 | $10,928 | | | $107,451 | | |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $2,545 | $1,749 | $268,711 | $253,350 | $11,155 | $8,654 | $1,789 |
| 6-Hexanelactam (epsilon-caprolactam) | $58,472,414 | $64,224,054 | $76,012,198 | $67,309,790 | $36,925,844 | $128,571,186 | $154,586,370 |
| Lactams (excl. of 2933.71 & 2933.72) | $12,203 | $2,700 | $7,876 | | $9,858 | | $3,588 |
| Total | $58,902,841 | $64,747,075 | $76,865,296 | $68,457,310 | $37,896,304 | $129,485,596 | $156,445,157 |
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