2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000 $25,000,000 $30,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,653,000 | 2,574,234 | 2,574,234 |
| 2006 | $25,968,000 | 2,562,260 | 2,562,260 |
| 2007 | $20,059,000 | 2,024,818 | 2,024,818 |
| 2008 | $25,137,000 | 1,201,791 | 1,201,791 |
| 2009 | $19,122,000 | 913,560 | 913,560 |
| 2010 | $18,106,869 | 1,082,526 | 1,082,526 |
| 2011 | $23,938,828 | 1,333,538 | 1,333,538 |
Note: Quantity represents Weight in kilograms
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