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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,016 | 19,842 | 19,842 |
| 2006 | $16,555 | 19,948 | 19,948 |
| 2007 | $41,151 | 34,854 | 34,854 |
| 2008 | $31,863 | 25,725 | 25,725 |
| 2009 | $27,322 | 24,224 | 24,224 |
| 2010 | $26,384 | 32,907 | 32,907 |
| 2011 | $44,607 | 43,753 | 43,753 |
Note: Quantity represents Weight in kilograms
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