2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,397,595 | 1,027,211 | 1,027,211 |
| 2006 | $3,912,416 | 1,106,989 | 1,106,989 |
| 2007 | $4,772,537 | 1,119,578 | 1,119,578 |
| 2008 | $5,314,563 | 1,155,557 | 1,155,557 |
| 2009 | $4,641,529 | 1,020,164 | 1,020,164 |
| 2010 | $5,339,593 | 1,451,256 | 1,451,256 |
| 2011 | $7,192,322 | 1,690,947 | 1,690,947 |
Note: Quantity represents Weight in kilograms
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