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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $45,778 | 191,000 | 191,000 |
| 2006 | $78,850 | 233,300 | 233,300 |
| 2007 | $37,358 | 63,400 | 63,400 |
| 2008 | $66,879 | 128,600 | 128,600 |
| 2009 | $48,860 | 64,900 | 64,900 |
| 2010 | $26,941 | 29,137 | 29,137 |
| 2011 | $18,715 | 24,151 | 24,151 |
Note: Quantity represents Weight in kilograms
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