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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,277,000 | 386,057,900 | 386,057,900 |
| 2006 | $2,200,000 | 126,666,800 | 126,666,800 |
| 2007 | $4,640,000 | 384,905,100 | 384,905,100 |
| 2008 | $6,210,000 | 703,737,900 | 703,737,900 |
| 2009 | $5,155,000 | 356,275,500 | 356,275,500 |
| 2010 | $5,878,000 | 392,767,600 | 392,767,600 |
| 2011 | $6,929,000 | 295,166,800 | 295,166,800 |
Note: Quantity represents Weight in kilograms
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