2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000,000 $20,000,000 $30,000,000 $40,000,000 $50,000,000 $60,000,000 $70,000,000 $80,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $64,907,026 | 945,701 | 2,736,482 |
| 2006 | $58,201,493 | 769,602 | 2,317,209 |
| 2007 | $56,970,002 | 1,020,145 | 1,896,390 |
| 2008 | $44,204,224 | 379,610 | 1,413,746 |
| 2009 | $32,469,683 | 223,989 | 1,106,653 |
| 2010 | $31,121,059 | 222,185 | 1,437,094 |
| 2011 | $35,198,709 | 286,845 | 1,482,641 |
Note: Quantity represents Number of items
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