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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $1,542,415 | $4,453,333 | $4,536,620 | $1,793,534 | $2,770,918 | $2,992,938 | $4,127,431 |
| Zinc sulphide | $2,350,563 | $2,345,326 | | | | | |
| Cadmium sulphide | $126,063 | $72,257 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $2,925,089 | $5,126,117 | $5,922,664 | $6,478,684 | $3,237,395 | $5,271,724 | $5,832,571 |
| Total | $6,944,130 | $11,997,033 | $10,459,284 | $8,272,218 | $6,008,313 | $8,264,662 | $9,960,002 |
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