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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,978 | 4,575 | 4,575 |
| 2006 | $28,717 | 3,202 | 3,202 |
| 2007 | $25,470 | 3,157 | 3,157 |
| 2008 | $19,223 | 2,205 | 2,205 |
| 2009 | $18,066 | 2,036 | 2,036 |
| 2010 | $13,316 | 1,820 | 1,820 |
| 2011 | $10,520 | 1,209 | 1,209 |
Note: Quantity represents Weight in kilograms
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