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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $384,940,086 | 21,506,898 | 0 |
| 2006 | $384,792,781 | 21,498,668 | 0 |
| 2007 | $424,636,640 | 25,091,658 | 37,243,043 |
| 2008 | $347,211,859 | 20,484,820 | 25,695,338 |
| 2009 | $334,684,428 | 14,424,506 | 23,988,456 |
| 2010 | $506,069,327 | 23,536,477 | 30,537,265 |
| 2011 | $597,289,799 | 28,214,917 | 35,475,380 |
Note: Quantity represents No Quantity
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