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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $107,502,000 | 961,765,000 | 961,765,000 |
| 2006 | $123,611,000 | 1,034,225,367 | 1,034,225,367 |
| 2007 | $145,880,000 | 978,040,800 | 978,040,800 |
| 2008 | $142,941,000 | 907,466,649 | 907,466,649 |
| 2009 | $98,917,000 | 747,458,900 | 747,458,900 |
| 2010 | $98,797,501 | 615,100,700 | 615,100,700 |
| 2011 | $116,064,251 | 775,338,997 | 775,338,997 |
Note: Quantity represents Weight in kilograms
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