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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $19,087 | $30,746 | $19,345 | $28,610 | $8,312 | $14,504 | $29,241 |
| Zinc sulphide | $77,040 | $118,423 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $201,607 | $206,130 | $314,394 | $302,473 | $368,293 | $269,593 | $367,112 |
| Total | $297,734 | $355,299 | $333,739 | $331,083 | $376,605 | $284,097 | $396,353 |
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