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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $223,656,000 | 384,626 | 384,626 |
| 2006 | $197,910,000 | 348,439 | 348,439 |
| 2007 | $358,371,000 | 661,118 | 661,118 |
| 2008 | $585,528,000 | 884,602 | 884,602 |
| 2009 | $1,069,398,000 | 1,054,032 | 1,054,032 |
| 2010 | $1,013,525,088 | 1,084,036 | 1,084,036 |
| 2011 | $848,375,925 | 1,254,157 | 1,254,157 |
Note: Quantity represents Weight in kilograms
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