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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $43,849,251 | 247,408,866 | 247,408,866 |
| 2006 | $38,616,094 | 224,771,077 | 224,771,077 |
| 2007 | $178,426,019 | 596,080,902 | 596,080,902 |
| 2008 | $476,089,328 | 1,245,695,882 | 1,245,695,882 |
| 2009 | $328,434,699 | 1,309,227,391 | 1,309,227,391 |
| 2010 | $351,974,504 | 1,385,804,094 | 1,385,804,094 |
| 2011 | $503,058,648 | 1,446,027,001 | 1,446,027,001 |
Note: Quantity represents Weight in kilograms
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