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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphites | $6,203,945 | $6,429,660 | $8,346,326 | $8,440,151 | $6,655,253 | $6,132,980 | $7,950,606 |
| Sulphites (excl. of sodium) | $3,814,941 | $4,270,118 | $5,119,519 | $10,897,933 | $9,143,859 | $8,247,115 | $7,723,803 |
| Thiosulphates | $4,269,101 | $4,950,625 | $6,586,748 | $9,521,693 | $5,435,239 | $5,125,618 | $7,033,656 |
| Total | $14,287,987 | $15,650,403 | $20,052,593 | $28,859,777 | $21,234,351 | $19,505,713 | $22,708,065 |
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