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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $5,524 | $32,126 | $16,138 | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $3,930 | $7,393 | $5,686 | $7,616 | $115 | $2,134 | $1,041 |
| Total | $9,454 | $39,519 | $21,824 | $7,616 | $115 | $2,134 | $1,041 |
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