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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $3,927,891 | $4,741,950 | $4,528,664 | $7,312,062 | $2,863,025 | $4,450,055 | $5,829,708 |
| Zinc sulphide | $58,510 | $140,240 | | | | | |
| Cadmium sulphide | $73,556 | | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $2,449,869 | $2,852,218 | $3,909,051 | $3,821,118 | $2,725,476 | $2,600,385 | $3,236,829 |
| Total | $6,509,826 | $7,734,408 | $8,437,715 | $11,133,180 | $5,588,501 | $7,050,440 | $9,066,537 |
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