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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | | $1,439 | $3,165 | $1,167 | $30,678 | $67,792 |
| Zinc sulphide | $15,677 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $1,151 | $12,469 | $15,708 | | | $84,025 |
| Total | $16,828 | $13,908 | $18,873 | $1,167 | $30,678 | $151,817 |
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