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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,444 | 6,457 | 6,457 |
| 2006 | $15,934 | 3,053 | 3,053 |
| 2007 | $13,834 | 3,171 | 3,171 |
| 2008 | $16,279 | 4,898 | 4,898 |
| 2009 | $17,961 | 5,903 | 5,903 |
| 2010 | $18,633 | 8,654 | 8,654 |
| 2011 | $22,359 | 4,321 | 4,321 |
Note: Quantity represents Weight in kilograms
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