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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,218 | 7,792 | 7,792 |
| 2006 | $18,590 | 9,258 | 9,258 |
| 2007 | $20,560 | 10,225 | 10,225 |
| 2008 | $20,505 | 10,047 | 10,047 |
| 2009 | $13,459 | 8,133 | 8,133 |
| 2010 | $10,744 | 9,681 | 9,681 |
| 2011 | $9,034 | 7,197 | 7,197 |
Note: Quantity represents Weight in kilograms
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