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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $508,340,000 | 22,468,640 | 49,202,788 |
| 2006 | $507,373,000 | 21,701,013 | 49,109,191 |
| 2007 | $535,463,000 | 21,735,874 | 48,347,035 |
| 2008 | $532,772,000 | 20,247,912 | 46,864,262 |
| 2009 | $450,254,000 | 17,339,386 | 37,607,662 |
| 2010 | $416,016,812 | 16,704,738 | 35,501,031 |
| 2011 | $472,825,406 | 16,688,009 | 41,498,351 |
Note: Quantity represents Number of items
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