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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $137,152,000 | 42,423,600 | 42,423,600 |
| 2006 | $165,838,000 | 49,192,490 | 49,192,490 |
| 2007 | $184,599,000 | 44,552,124 | 44,552,124 |
| 2008 | $174,537,000 | 39,762,983 | 39,762,983 |
| 2009 | $53,534,000 | 17,061,300 | 17,061,300 |
| 2010 | $149,236,267 | 31,551,400 | 31,551,400 |
| 2011 | $198,088,251 | 29,459,796 | 29,459,796 |
Note: Quantity represents Weight in kilograms
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