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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,051,619,368 | 5,407,745 | 12,971,316 |
| 2006 | $1,556,542,331 | 5,887,230 | 11,243,371 |
| 2007 | $1,411,189,073 | 5,327,000 | 12,816,114 |
| 2008 | $1,506,489,393 | 5,285,654 | 12,161,691 |
| 2009 | $1,176,165,792 | 3,900,746 | 9,972,545 |
| 2010 | $1,268,284,056 | 3,370,224 | 9,986,749 |
Note: Quantity represents Number of items
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