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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $500,215,161 | 20,634,802 | 20,634,802 |
| 2006 | $557,786,869 | 23,970,704 | 23,970,704 |
| 2007 | $674,960,632 | 25,443,742 | 25,443,742 |
| 2008 | $632,509,097 | 22,773,605 | 22,773,605 |
| 2009 | $420,971,395 | 14,301,028 | 14,301,028 |
| 2010 | $523,705,307 | 16,593,799 | 16,593,799 |
| 2011 | $566,625,324 | 15,916,020 | 15,916,020 |
Note: Quantity represents Weight in kilograms
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