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| Commodity | 2005 | 2006 | 2007 | 2010 |
| Sodium sulphides | $1,248,454 | $898,596 | $1,419,328 | $1,256,002 |
| Zinc sulphide | $624 | $381 | | |
| Cadmium sulphide | $350 | $24,493 | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $323,010 | $263,260 | $514,889 | $174,667 |
| Total | $1,572,438 | $1,186,730 | $1,934,217 | $1,430,669 |
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