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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium sulphides | $1,044,535 | $1,113,618 | $932,579 | $1,827,744 | $296,018 | $53,290 | $544 |
| Zinc sulphide | $1,814 | $1,526 | | | | | |
| Cadmium sulphide | $66,420 | $324,213 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $98,209 | $22,071 | $1,263,299 | $2,791,723 | $1,841,079 | $2,989,252 | $2,418,228 |
| Total | $1,210,978 | $1,461,428 | $2,195,878 | $4,619,467 | $2,137,097 | $3,042,542 | $2,418,772 |
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