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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $605,504,592 | 95,364 | 43,010 |
| 2006 | $848,702,961 | 100,234 | 34,315 |
| 2007 | $1,251,095,580 | 110,752 | 47,122 |
| 2008 | $1,109,398,337 | 96,366 | 48,082 |
| 2009 | $616,078,300 | 90,908 | 37,383 |
| 2010 | $662,501,870 | 75,236 | 54,351 |
| 2011 | $868,528,381 | 77,929 | 33,524 |
Note: Quantity represents Number of items
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