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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $416,815,258 | 77,159,433 | 77,159,433 |
| 2006 | $388,363,188 | 50,933,421 | 50,933,421 |
| 2007 | $613,645,871 | 66,215,025 | 66,215,025 |
| 2008 | $1,195,260,464 | 117,605,116 | 117,605,116 |
| 2009 | $1,039,656,919 | 95,063,663 | 95,063,663 |
| 2010 | $1,279,050,938 | 120,515,483 | 120,515,483 |
| 2011 | $1,431,983,155 | 133,439,511 | 133,439,511 |
Note: Quantity represents Weight in kilograms
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