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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $2,090 | $4,325 | $12,269 | $12,085 | $28,894 | $6,312 | $14,085 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $2,610 | $4,613 | | $254 | $419 | $35 | $1,764 |
| Total | $4,700 | $8,938 | $12,269 | $12,339 | $29,313 | $6,347 | $15,849 |
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