2004 2005 2006 2007 2008 2009 2010 2011 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,692,215 | 15,578,366 | 15,578,366 |
| 2006 | $5,021,425 | 24,531,712 | 24,531,712 |
| 2007 | $7,049,277 | 29,847,023 | 29,847,023 |
| 2008 | $8,947,012 | 30,493,062 | 30,493,062 |
| 2009 | $8,436,194 | 3,319,209 | 3,319,209 |
| 2010 | $7,332,828 | 17,799,346 | 17,799,346 |
Note: Quantity represents Weight in kilograms
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