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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $624,610 | $8,787 | $939,956 | $1,152,066 | $546,005 | $198,834 | $347,826 |
| Zinc sulphide | $70,922 | $138,087 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $325,991 | $276,175 | $499,480 | $618,074 | $1,292,072 | $1,069,728 | $916,870 |
| Total | $1,021,523 | $423,049 | $1,439,436 | $1,770,140 | $1,838,077 | $1,268,562 | $1,264,696 |
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