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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $25,400 | $104,968 | $246,870 | $339,846 | $499,056 | $57,599 | $173,225 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $141 | $409 | | | | | $260 |
| Total | $25,541 | $105,377 | $246,870 | $339,846 | $499,056 | $57,599 | $173,485 |
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