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| Year | Trade Value | Weight (kg) | Quantity |
| 2007 | $272,912,000 | 72,918,200 | 72,918,200 |
| 2008 | $255,150,000 | 65,511,100 | 65,511,100 |
| 2009 | $137,563,000 | 42,022,700 | 42,022,700 |
| 2010 | $149,553,301 | 44,740,800 | 44,740,800 |
| 2011 | $213,120,637 | 55,006,321 | 55,006,321 |
Note: Quantity represents Weight in kilograms
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