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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $66,587,890 | 1,115,732,194 | 1,115,732,194 |
| 2006 | $50,843,508 | 988,904,980 | 988,904,980 |
| 2007 | $45,195,841 | 944,401,867 | 944,401,867 |
| 2008 | $383,310,416 | 323,780,748 | 323,780,748 |
| 2009 | $49,008,216 | 97,150,439 | 97,150,439 |
| 2010 | $120,388,667 | 884,726,346 | 884,726,346 |
| 2011 | $182,735,855 | 886,495,565 | 886,495,565 |
Note: Quantity represents Weight in kilograms
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