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 $35,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,868,386 | 2,689,134 | 2,689,134 |
| 2006 | $14,844,853 | 2,483,146 | 2,483,146 |
| 2007 | $23,893,423 | 3,893,436 | 3,893,436 |
| 2008 | $25,066,105 | 3,437,873 | 3,437,873 |
| 2009 | $22,996,775 | 3,221,591 | 3,221,591 |
| 2010 | $28,041,450 | 3,902,584 | 3,902,584 |
| 2011 | $27,948,123 | 3,585,775 | 3,585,775 |
Note: Quantity represents Weight in kilograms
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