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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $98,790,274 | 352,243,754 | 352,243,754 |
| 2006 | $121,766,453 | 397,755,121 | 397,755,121 |
| 2007 | $139,448,296 | 480,035,136 | 480,035,136 |
| 2008 | $158,319,090 | 459,749,014 | 459,749,014 |
| 2009 | $134,243,723 | 375,509,682 | 375,509,682 |
| 2010 | $118,019,914 | 344,875,579 | 344,875,579 |
Note: Quantity represents Weight in kilograms
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