2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000 $12,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,150,613 | 13,272,414 | 13,272,414 |
| 2006 | $6,054,055 | 13,349,962 | 13,349,962 |
| 2007 | $6,409,387 | 13,456,003 | 13,456,003 |
| 2008 | $8,767,273 | 14,290,363 | 14,290,363 |
| 2009 | $4,316,023 | 14,195,792 | 14,195,792 |
| 2010 | $7,307,223 | 17,536,682 | 17,536,682 |
| 2011 | $9,288,312 | 19,362,735 | 19,362,735 |
Note: Quantity represents Weight in kilograms
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