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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $19,054,390 | $29,759,650 | $16,158,116 | $55,010,258 | $23,158,665 | $30,436,688 | $46,101,231 |
| Zinc sulphide | $3,518,646 | $3,434,204 | | | | | |
| Cadmium sulphide | $54,980 | $32,231 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $57,948,839 | $57,030,753 | $51,083,375 | $92,192,832 | $35,132,814 | $23,234,861 | $20,711,769 |
| Total | $80,576,855 | $90,256,838 | $67,241,491 | $147,203,090 | $58,291,479 | $53,671,549 | $66,813,000 |
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