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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $100,101,492 | 99,859,565 | 99,859,565 |
| 2006 | $99,862,139 | 96,093,978 | 96,093,978 |
| 2007 | $100,814,996 | 84,464,829 | 84,464,829 |
| 2008 | $93,653,566 | 69,962,973 | 69,962,973 |
| 2009 | $90,018,348 | 79,433,736 | 79,433,736 |
| 2010 | $105,359,730 | 93,895,989 | 93,895,989 |
| 2011 | $120,813,888 | 97,971,946 | 97,971,946 |
Note: Quantity represents Weight in kilograms
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