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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $44,462,162 | 293,714,000 | 293,714,000 |
| 2006 | $165,662,140 | 1,261,595,788 | 1,261,595,788 |
| 2007 | $224,907,638 | 493,671,360 | 493,671,360 |
| 2008 | $124,456,173 | 367,501,817 | 367,501,817 |
| 2010 | $180,108,491 | 408,330,058 | 408,330,058 |
Note: Quantity represents Weight in kilograms
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