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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $111,798,000 | 16,466 | 16,466 |
| 2006 | $207,504,000 | 19,173 | 19,173 |
| 2007 | $265,502,000 | 21,730 | 21,730 |
| 2008 | $302,761,000 | 23,128 | 23,128 |
| 2009 | $276,350,000 | 33,762 | 33,762 |
| 2010 | $441,516,738 | 26,677 | 26,677 |
| 2011 | $866,095,995 | 35,613 | 35,613 |
Note: Quantity represents Weight in kilograms
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