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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,806,800 | 243,371,359 | 243,371,359 |
| 2006 | $2,604,800 | 323,018,484 | 323,018,484 |
| 2007 | $7,218,100 | 475,215,184 | 475,215,184 |
| 2008 | $20,347,700 | 651,773,827 | 651,773,827 |
| 2009 | $5,494,900 | 393,045,653 | 393,045,653 |
| 2010 | $3,861,300 | 378,523,750 | 378,523,750 |
| 2011 | $2,689,000 | 180,600,260 | 180,600,260 |
Note: Quantity represents Weight in kilograms
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