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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $3,166,992 | $4,563,542 | $5,167,558 | $6,933,700 | $4,931,995 | $3,648,711 | $5,251,242 |
| Zinc sulphide | $376,351 | $892,626 | | | | | |
| Cadmium sulphide | $41,523 | $864 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $17,069,826 | $5,687,257 | $7,917,382 | $7,166,406 | $4,714,029 | $5,840,223 | $6,469,721 |
| Total | $20,654,692 | $11,144,289 | $13,084,940 | $14,100,106 | $9,646,024 | $9,488,934 | $11,720,963 |
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