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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $141,905,000 | 110,554,900 | 110,554,900 |
| 2006 | $165,951,000 | 136,748,100 | 136,748,100 |
| 2007 | $233,886,000 | 167,017,300 | 167,017,300 |
| 2008 | $279,198,000 | 184,704,808 | 184,704,808 |
| 2009 | $99,525,000 | 78,563,058 | 78,563,058 |
| 2010 | $202,348,588 | 179,135,673 | 179,135,673 |
| 2011 | $274,292,139 | 191,648,263 | 191,648,263 |
Note: Quantity represents Weight in kilograms
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