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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $2,303,306 | $3,899,866 | $4,995,351 | $5,236,311 | $7,147,738 | $7,318,052 | $7,864,110 |
| Zinc sulphide | $3,714,654 | $3,790,534 | | | | | |
| Cadmium sulphide | $39,440 | $17,565 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $3,492,636 | $5,072,986 | $6,584,440 | $8,736,298 | $6,571,153 | $8,136,429 | $10,141,682 |
| Total | $9,550,036 | $12,780,951 | $11,579,791 | $13,972,609 | $13,718,891 | $15,454,481 | $18,005,792 |
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