2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000,000 $100,000,000 $150,000,000 $200,000,000 $250,000,000 $300,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $143,699,674 | 207,030,218 | 1,189 |
| 2006 | $258,160,195 | 319,119,919 | 37 |
| 2007 | $136,092,114 | 83,481,852 | 12 |
| 2008 | $56,056,853 | 29,853,538 | 105 |
| 2009 | $22,522,189 | 0 | 103 |
| 2010 | $145,892,332 | 0 | 22 |
| 2011 | $214,084,990 | 104,795,595 | 30 |
Note: Quantity represents Number of items
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