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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $126,114,974 | 962,536,347 | 962,536,347 |
| 2006 | $128,593,953 | 868,255,165 | 868,255,165 |
| 2007 | $136,339,194 | 849,162,484 | 849,162,484 |
| 2008 | $213,619,566 | 1,465,515,513 | 1,465,515,513 |
| 2009 | $137,591,010 | 905,783,572 | 905,783,572 |
| 2010 | $151,702,837 | 1,000,116,320 | 1,000,116,320 |
| 2011 | $155,028,461 | 890,482,189 | 890,482,189 |
Note: Quantity represents Weight in kilograms
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