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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,874,114,372 | 327,395,000 | 201,771 |
| 2006 | $3,840,863,691 | 252,372,000 | 161,871 |
| 2007 | $3,216,739,861 | 205,343,000 | 139,078 |
| 2008 | $2,344,433,422 | 142,012,000 | 92,142 |
| 2009 | $1,213,720,085 | 82,249,000 | 51,480 |
| 2010 | $2,103,256,241 | 122,920,000 | 77,440 |
| 2011 | $2,568,742,848 | 137,730,000 | 83,735 |
Note: Quantity represents Number of items
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