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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,200,920,000 | 153,746,100 | 84,952 |
| 2006 | $1,309,872,000 | 181,667,200 | 92,659 |
| 2007 | $1,787,703,000 | 215,346,300 | 127,239 |
| 2008 | $1,958,686,000 | 211,842,200 | 129,975 |
| 2009 | $955,573,000 | 108,918,100 | 64,626 |
| 2010 | $1,198,939,964 | 144,499,800 | 77,349 |
| 2011 | $1,822,368,774 | 199,198,670 | 120,801 |
Note: Quantity represents Number of items
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