2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000,000 $40,000,000 $60,000,000 $80,000,000 $100,000,000 $120,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $87,507,332 | 1,435,651 | 1,435,651 |
| 2006 | $91,111,839 | 1,567,859 | 1,567,859 |
| 2007 | $103,310,636 | 1,638,433 | 1,638,433 |
| 2008 | $107,687,986 | 1,368,313 | 1,368,313 |
| 2009 | $79,973,261 | 989,856 | 989,856 |
| 2010 | $107,666,555 | 1,225,650 | 1,225,650 |
| 2011 | $107,467,967 | 1,171,025 | 1,171,025 |
Note: Quantity represents Weight in kilograms
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