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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $88,376,779 | 69,244,050 | 69,244,050 |
| 2006 | $116,864,844 | 67,871,079 | 67,871,079 |
| 2007 | $171,482,540 | 108,115,000 | 108,115,000 |
| 2008 | $177,813,009 | 106,580,000 | 106,580,000 |
| 2009 | $96,549,032 | 89,939,000 | 89,939,000 |
| 2010 | $134,437,742 | 87,491,000 | 87,491,000 |
| 2011 | $172,530,271 | 95,495,182 | 95,495,182 |
Note: Quantity represents Weight in kilograms
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