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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $163,625,000 | 84,340,800 | 84,340,800 |
| 2006 | $193,635,000 | 96,166,800 | 96,166,800 |
| 2007 | $225,183,000 | 109,253,100 | 109,253,100 |
| 2008 | $270,646,000 | 113,929,300 | 113,929,300 |
| 2009 | $198,945,000 | 81,184,548 | 81,184,548 |
| 2010 | $223,552,829 | 102,156,527 | 102,156,527 |
| 2011 | $251,628,065 | 100,118,695 | 100,118,695 |
Note: Quantity represents Weight in kilograms
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