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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $30,460 | 19,883 | 19,883 |
| 2006 | $42,971 | 61,336 | 61,336 |
| 2007 | $85,689 | 132,072 | 132,072 |
| 2008 | $150,782 | 118,006 | 118,006 |
| 2009 | $159,954 | 88,615 | 88,615 |
| 2010 | $112,787 | 102,385 | 102,385 |
| 2011 | $119,018 | 94,777 | 94,777 |
Note: Quantity represents Weight in kilograms
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