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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $357,842,476 | 36,465,837 | 36,465,837 |
| 2006 | $309,259,657 | 31,273,754 | 31,273,754 |
| 2007 | $334,570,195 | 31,207,898 | 31,207,898 |
| 2008 | $296,161,571 | 29,823,393 | 29,823,393 |
| 2009 | $248,250,552 | 27,029,635 | 27,029,635 |
| 2010 | $366,758,777 | 32,087,173 | 32,087,173 |
| 2011 | $552,035,714 | 32,796,051 | 32,796,051 |
Note: Quantity represents Weight in kilograms
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