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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $76,929 | 13,381 | 13,381 |
| 2006 | $90,167 | 16,444 | 16,444 |
| 2007 | $50,621 | 7,734 | 7,734 |
| 2008 | $63,477 | 9,392 | 9,392 |
| 2009 | $67,827 | 8,001 | 8,001 |
| 2010 | $44,402 | 6,353 | 6,353 |
| 2011 | $29,385 | 6,466 | 6,466 |
Note: Quantity represents Weight in kilograms
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