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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $208,952,000 | 38,589,708 | 38,589,708 |
| 2006 | $232,151,000 | 40,873,761 | 40,873,761 |
| 2007 | $239,709,000 | 39,114,816 | 39,114,816 |
| 2008 | $226,887,000 | 32,697,173 | 32,697,173 |
| 2009 | $180,667,000 | 27,986,053 | 27,986,053 |
| 2010 | $182,978,170 | 27,413,394 | 27,413,394 |
| 2011 | $203,508,742 | 27,328,281 | 27,328,281 |
Note: Quantity represents Weight in kilograms
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