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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $229,676 | $318,298 | $371,681 | $262,999 | $300,093 | $436,170 | $482,891 |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $393 | $107 | $1,865 | $67 | $186 | $3,174 | $224 |
| Total | $230,069 | $318,405 | $373,546 | $263,066 | $300,279 | $439,344 | $483,115 |
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