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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $189,594,000 | 319,318,500 | 319,318,500 |
| 2006 | $190,866,000 | 310,676,500 | 310,676,500 |
| 2007 | $199,544,000 | 285,780,800 | 285,780,800 |
| 2008 | $261,477,000 | 286,462,700 | 286,462,700 |
| 2009 | $133,545,000 | 242,721,700 | 242,721,700 |
| 2010 | $166,612,890 | 221,647,100 | 221,647,100 |
| 2011 | $212,617,235 | 209,531,213 | 209,531,213 |
Note: Quantity represents Weight in kilograms
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