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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $433,121,614 | 13,239,871 | 12,812 |
| 2006 | $486,472,742 | 14,870,734 | 17,132 |
| 2007 | $462,174,928 | 0 | 21,185 |
| 2008 | $481,222,023 | 0 | 17,360 |
| 2009 | $336,916,862 | 0 | 17,722 |
| 2010 | $499,188,212 | 0 | 28,367 |
| 2011 | $523,866,800 | 0 | 26,120 |
Note: Quantity represents Number of items
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