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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Natural calcium phosphates, nat. aluminium calcium phosphates & phosphatic ... | $604,702 | $996,740 | $2,214,729 | $4,631,865 |
| Natural calcium phosphates, nat. aluminium calcium phosphates & phosphatic ... | $88,341 | $131,811 | $257,973 | $857,043 |
| Total | $693,043 | $1,128,551 | $2,472,702 | $5,488,908 |
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