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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,255,625,444 | 1,344,927 | 1,344,927 |
| 2006 | $1,629,457,440 | 489,106 | 489,106 |
| 2007 | $3,330,812,611 | 1,293,857 | 1,293,857 |
| 2008 | $14,522,131 | 200,676 | 200,676 |
| 2009 | $18,607,487 | 0 | 0 |
| 2010 | $72,258,916 | 229,500 | 229,500 |
Note: Quantity represents Weight in kilograms
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