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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $1,467,577 | $3,056,912 | $4,270,236 | $4,239,427 | $4,711,388 | $5,179,808 | $3,197,747 |
| Zinc sulphide | $93,194 | $51,472 | | | | | |
| Cadmium sulphide | $994 | | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $869,665 | $1,044,513 | $901,311 | $2,086,439 | $1,105,711 | $1,050,390 | $511,403 |
| Total | $2,431,430 | $4,152,897 | $5,171,547 | $6,325,866 | $5,817,099 | $6,230,198 | $3,709,150 |
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