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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $681,527,398 | 43,136,180 | 43,136,180 |
| 2006 | $652,476,531 | 40,985,862 | 40,985,862 |
| 2007 | $656,763,710 | 38,146,142 | 38,146,142 |
| 2008 | $641,631,632 | 36,261,058 | 36,261,058 |
| 2009 | $504,088,807 | 30,116,119 | 30,116,119 |
| 2010 | $545,259,826 | 34,405,744 | 34,405,744 |
| 2011 | $614,445,730 | 37,405,277 | 37,405,277 |
Note: Quantity represents Weight in kilograms
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