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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $339,151,823 | 240,048,700 | 240,048,700 |
| 2006 | $597,455,479 | 299,924,000 | 299,924,000 |
| 2007 | $815,230,287 | 303,366,300 | 303,366,300 |
| 2008 | $691,659,878 | 322,092,000 | 322,092,000 |
| 2009 | $273,052,384 | 225,298,600 | 225,298,600 |
| 2010 | $483,727,598 | 266,343,000 | 266,343,000 |
| 2011 | $559,616,258 | 277,000,477 | 277,000,477 |
Note: Quantity represents Weight in kilograms
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