|
| Commodity | 2005 | 2007 | 2010 | 2011 |
| Sodium sulphates other than disodium sulphate | | $6,800 | $111,001 | $6,263 |
| Sulphates of magnesium | $349 | | | |
| Sulphates of aluminium | $51,935 | $37,457 | | $17,658 |
| Sulphates of copper | | $741 | | $67 |
| Sulphates (excl. of 2833.21-2833.27) | | | $65,533 | $123,902 |
| Total | $52,284 | $44,998 | $176,534 | $147,890 |
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