2004 2005 2006 2007 2008 2009 2010 2011 $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 | $222,835,823 | 50,210,900 | 23,760 |
| 2006 | $218,008,339 | 51,680,000 | 17,408 |
| 2007 | $263,837,265 | 53,822,300 | 11,932 |
| 2008 | $317,737,639 | 53,488,300 | 12,603 |
| 2009 | $100,216,935 | 23,401,600 | 7,242 |
| 2010 | $122,268,522 | 38,419,200 | 9,069 |
Note: Quantity represents Number of items
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