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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $373,416 | $348,320 | $318,829 | $347,868 | $188,083 | $261,190 | $319,953 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $18,543 | $39,427 | $17,851 | $992 | $9,684 | $2,278 | $168,143 |
| Total | $391,959 | $387,747 | $336,680 | $348,860 | $197,767 | $263,468 | $488,096 |
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