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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Carbon disulphide | $3,659,892 | $3,446,026 | $2,406,032 | $6,431,770 | $4,218,097 | $2,211,383 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $99,454 | $79,147 | $80,979 | $369,845 | $104,615 | $64,963 |
| Total | $3,759,346 | $3,525,173 | $2,487,011 | $6,801,615 | $4,322,712 | $2,276,346 |
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