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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,200 | 5,797 | 5,797 |
| 2006 | $45,800 | 10,315 | 10,315 |
| 2007 | $62,400 | 9,415 | 9,415 |
| 2008 | $107,600 | 28,139 | 28,139 |
| 2009 | $85,100 | 30,636 | 30,636 |
| 2010 | $183,000 | 64,520 | 64,520 |
| 2011 | $103,900 | 34,429 | 34,429 |
Note: Quantity represents Weight in kilograms
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