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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $2,097,254 | $2,575,498 | $2,747,325 | $5,310,883 | $5,522,351 | $6,896,526 | $7,735,078 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $31,226 | $125,321 | $6,996 | $51,147 | $215,186 | $784,785 | $1,875,227 |
| Total | $2,128,480 | $2,700,819 | $2,754,321 | $5,362,030 | $5,737,537 | $7,681,311 | $9,610,305 |
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