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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $7,845 | $684 | $485,819 | $10,686,999 | $14,170,032 | $17,220,522 | $22,870,642 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $955,496 | $2,212,753 | $2,431,001 | $7,265,701 | $2,093,338 | $4,947,097 | $4,616,380 |
| Total | $963,341 | $2,213,437 | $2,916,820 | $17,952,700 | $16,263,370 | $22,167,619 | $27,487,022 |
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