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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $378,904,873 | 2,343,491 | 0 |
| 2006 | $337,989,177 | 1,412,169 | 0 |
| 2007 | $511,470,877 | 0 | 738,893,527 |
| 2008 | $525,954,258 | 0 | 587,594,382 |
| 2009 | $214,951,363 | 0 | 251,455,247 |
| 2010 | $242,647,796 | 0 | 255,791,154 |
| 2011 | $222,809,185 | 0 | 191,939,624 |
Note: Quantity represents No Quantity
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