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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $15,089,913 | $19,371,767 | $16,663,562 | $32,076,383 | $18,036,236 | $16,826,628 | $19,728,648 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $6,152,192 | $6,345,333 | $6,132,079 | $14,861,029 | $14,279,457 | $13,175,031 | $15,967,793 |
| Total | $21,242,105 | $25,717,100 | $22,795,641 | $46,937,412 | $32,315,693 | $30,001,659 | $35,696,441 |
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