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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Sodium sulphides | $1,840,720 | $2,034,331 | $2,743,800 | $3,275,410 | $3,516,781 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $40,859 | $110,141 | $51,123 | $44,804 | $53,634 |
| Total | $1,881,579 | $2,144,472 | $2,794,923 | $3,320,214 | $3,570,415 |
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