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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $513,626,707 | 9,673,271 | 9,673,271 |
| 2006 | $573,562,022 | 11,882,935 | 11,882,935 |
| 2007 | $596,365,885 | 11,201,985 | 11,201,985 |
| 2008 | $400,302,794 | 6,252,220 | 6,252,220 |
| 2009 | $309,950,704 | 6,212,335 | 6,212,335 |
| 2010 | $391,122,791 | 6,544,004 | 6,544,004 |
| 2011 | $409,800,361 | 4,196,583 | 4,196,583 |
Note: Quantity represents Weight in kilograms
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