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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $4,680,592 | $4,805,738 | $7,540,446 | $10,295,746 | $13,361,838 | $8,859,442 | $9,868,784 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $1,441,945 | $1,483,671 | $893,201 | $2,388,354 | $1,693,975 | $2,014,619 | $1,510,904 |
| Total | $6,122,537 | $6,289,409 | $8,433,647 | $12,684,100 | $15,055,813 | $10,874,061 | $11,379,688 |
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