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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon disulphide | $1,805,288 | $1,810,428 | $2,155,492 | $3,552,213 | $3,007,444 | $2,969,017 | $3,329,381 |
| Sulphides of non-metals (excl. carbon disulphide); commercial phosphorus tr ... | $4,219,873 | $3,904,768 | $4,837,959 | $10,981,957 | $9,275,785 | $7,429,094 | $8,126,011 |
| Total | $6,025,161 | $5,715,196 | $6,993,451 | $14,534,170 | $12,283,229 | $10,398,111 | $11,455,392 |
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