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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $213,889,098 | 778,575,591 | 778,575,591 |
| 2006 | $213,662,028 | 662,451,228 | 662,451,228 |
| 2007 | $230,821,242 | 339,660,457 | 339,660,457 |
| 2008 | $192,569,303 | 163,659,458 | 163,659,458 |
| 2009 | $191,305,492 | 151,928,377 | 151,928,377 |
| 2010 | $215,148,061 | 275,267,646 | 275,267,646 |
Note: Quantity represents Weight in kilograms
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