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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium sulphides | $711,305 | $686,494 | $1,086,688 | $1,008,780 | $707,820 | $1,083,037 |
| Zinc sulphide | $288,626 | $660,126 | | | | |
| Cadmium sulphide | $11,688 | $26,561 | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $496,840 | $570,956 | $1,240,798 | $1,339,804 | $1,065,737 | $1,287,975 |
| Total | $1,508,459 | $1,944,137 | $2,327,486 | $2,348,584 | $1,773,557 | $2,371,012 |
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