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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $163,700 | 95,409,687 | 95,409,687 |
| 2006 | $68,100 | 40,966,200 | 40,966,200 |
| 2007 | $132,500 | 60,318,900 | 60,318,900 |
| 2008 | $191,800 | 64,455,900 | 64,455,900 |
| 2009 | $125,800 | 13,527,000 | 13,527,000 |
| 2010 | $277,200 | 69,561,700 | 69,561,700 |
| 2011 | $1,302,000 | 241,006,378 | 241,006,378 |
Note: Quantity represents Weight in kilograms
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