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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $146,255,307 | 186,907,989 | 186,907,989 |
| 2006 | $147,939,246 | 187,799,874 | 187,799,874 |
| 2007 | $106,646,540 | 113,755,968 | 113,755,968 |
| 2008 | $168,069,163 | 135,050,540 | 135,050,540 |
| 2009 | $211,402,035 | 168,304,859 | 168,304,859 |
| 2010 | $258,485,347 | 296,865,732 | 296,865,732 |
Note: Quantity represents Weight in kilograms
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