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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,767 | 966 | 966 |
| 2006 | $25,493 | 3,833 | 3,833 |
| 2007 | $32,186 | 3,272 | 3,272 |
| 2008 | $26,012 | 2,565 | 2,565 |
| 2009 | $34,929 | 4,237 | 4,237 |
| 2010 | $33,590 | 7,353 | 7,353 |
| 2011 | $15,044 | 2,789 | 2,789 |
Note: Quantity represents Weight in kilograms
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