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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,700 | 2,206 | 2,206 |
| 2006 | $24,900 | 5,376 | 5,376 |
| 2007 | $92,000 | 12,478 | 12,478 |
| 2008 | $190,500 | 48,408 | 48,408 |
| 2009 | $43,400 | 2,093 | 2,093 |
| 2010 | $94,300 | 8,991 | 8,991 |
| 2011 | $139,200 | 9,267 | 9,267 |
Note: Quantity represents Weight in kilograms
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