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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $198,147,000 | 21,169,617 | 21,169,617 |
| 2006 | $274,060,000 | 29,863,943 | 29,863,943 |
| 2007 | $315,592,000 | 28,654,966 | 28,654,966 |
| 2008 | $306,382,000 | 25,724,650 | 25,724,650 |
| 2009 | $203,561,000 | 21,271,786 | 21,271,786 |
| 2010 | $228,651,493 | 26,475,068 | 26,475,068 |
| 2011 | $300,447,341 | 28,885,917 | 28,885,917 |
Note: Quantity represents Weight in kilograms
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