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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Sodium sulphides | $957,954 | $12,412 | $1,550 | $4,782 | $78,713 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $207,189 | $537 | $104,809 | $57,963 | $2,668 |
| Total | $1,165,143 | $12,949 | $106,359 | $62,745 | $81,381 |
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