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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $286,007 | 120,942 | 120,942 |
| 2006 | $270,127 | 107,674 | 107,674 |
| 2007 | $258,932 | 163,936 | 163,936 |
| 2008 | $99,076 | 31,476 | 31,476 |
| 2009 | $129,617 | 105,028 | 105,028 |
| 2010 | $267,848 | 192,389 | 192,389 |
| 2011 | $372,047 | 281,231 | 281,231 |
Note: Quantity represents Weight in kilograms
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