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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $32,906 | $45,407 | $49,379 | $66,961 | $171,471 | $127,296 | $81,692 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $15,656 | $16,728 | $4,397 | $24,528 | $8,915 | $307 | $11,791 |
| Total | $48,562 | $62,135 | $53,776 | $91,489 | $180,386 | $127,603 | $93,483 |
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