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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $33,230,925 | 44,505,961 | 44,505,961 |
| 2006 | $54,941,203 | 72,208,877 | 72,208,877 |
| 2007 | $67,007,880 | 82,549,401 | 82,549,401 |
| 2008 | $26,373,335 | 13,992,537 | 13,992,537 |
| 2009 | $13,990,370 | 9,329,682 | 9,329,682 |
| 2010 | $17,494,378 | 11,482,736 | 11,482,736 |
| 2011 | $37,845,541 | 29,671,691 | 29,671,691 |
Note: Quantity represents Weight in kilograms
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