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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $2,455,677 | $2,881,005 | $4,839,665 | $4,551,659 | $5,912,937 | $4,551,496 | $3,484,640 |
| Zinc sulphide | $138,425 | $162,090 | | | | | |
| Cadmium sulphide | $317 | | $67 | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $1,491,327 | $1,518,521 | $1,746,065 | $3,926,450 | $2,417,997 | $2,790,113 | $2,271,984 |
| Total | $4,085,746 | $4,561,616 | $6,585,797 | $8,478,109 | $8,330,934 | $7,341,609 | $5,756,624 |
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