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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 | 2011 |
| Sodium sulphides | $2,688 | $4,041 | $1,726 | $1,265 | $205 | $6,025 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $76 | | $5,899 | | $2,401,701 | $4,915,643 |
| Total | $2,764 | $4,041 | $7,625 | $1,265 | $2,401,906 | $4,921,668 |
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