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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $279,453,431 | 163,513,210 | 163,513,210 |
| 2006 | $318,775,415 | 176,319,353 | 176,319,353 |
| 2007 | $381,885,689 | 162,172,045 | 162,172,045 |
| 2008 | $387,343,646 | 152,974,161 | 152,974,161 |
| 2009 | $216,465,541 | 104,156,797 | 104,156,797 |
| 2010 | $308,930,555 | 144,539,243 | 144,539,243 |
| 2011 | $357,274,522 | 146,375,137 | 146,375,137 |
Note: Quantity represents Weight in kilograms
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