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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $60,127 | 65,645 | 65,645 |
| 2006 | $125,979 | 143,248 | 143,248 |
| 2007 | $34,902 | 87,097 | 87,097 |
| 2008 | $253,602 | 177,021 | 177,021 |
| 2009 | $45,544 | 44,762 | 44,762 |
| 2010 | $173,056 | 220,372 | 220,372 |
| 2011 | $63,722 | 97,441 | 97,441 |
Note: Quantity represents Weight in kilograms
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