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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $13,790,246 | 786,639,602 | 786,639,602 |
| 2006 | $18,013,389 | 822,938,189 | 822,938,189 |
| 2007 | $20,188,545 | 1,019,053,399 | 1,019,053,399 |
| 2008 | $22,840,155 | 943,848,385 | 943,848,385 |
| 2009 | $24,488,153 | 961,480,518 | 961,480,518 |
| 2010 | $21,240,985 | 985,312,276 | 985,312,276 |
| 2011 | $22,141,191 | 929,095,331 | 929,095,331 |
Note: Quantity represents Weight in kilograms
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