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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $2,148,017 | $1,410,373 | $2,798,805 | $2,620,870 | $2,281,330 | $1,605,377 | $1,670,131 |
| Zinc sulphide | $2,482,419 | $3,386,919 | | | | | |
| Cadmium sulphide | $7,351 | | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $3,496,417 | $3,915,470 | $2,810,331 | $2,447,739 | $2,185,561 | $4,566,544 | $3,660,777 |
| Total | $8,134,204 | $8,712,762 | $5,609,136 | $5,068,609 | $4,466,891 | $6,171,921 | $5,330,908 |
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