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 $350,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $195,885,533 | 17,268,223 | 32,824 |
| 2006 | $246,040,796 | 22,193,497 | 33,677 |
| 2007 | $285,722,061 | 11,715,789 | 40,862 |
| 2008 | $280,662,546 | 19,504,080 | 33,359 |
| 2009 | $208,857,175 | 18,194,460 | 23,685 |
| 2010 | $216,769,947 | 19,128,333 | 27,588 |
| 2011 | $223,386,407 | 20,127,084 | 33,049 |
Note: Quantity represents Number of items
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