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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $5,038,000 | 4,441,066 | 4,441,066 |
| 2007 | $377,324,620 | 246,797,164 | 246,797,164 |
| 2008 | $510,312,088 | 272,621,137 | 272,621,137 |
| 2009 | $1,250,868,139 | 240,992,385 | 240,992,385 |
| 2010 | $1,048,003,766 | 588,438,204 | 588,438,204 |
Note: Quantity represents Weight in kilograms
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