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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $795,793,956 | 117,470,822 | 117,470,822 |
| 2006 | $812,071,051 | 119,202,472 | 119,202,472 |
| 2007 | $784,239,673 | 119,019,854 | 119,019,854 |
| 2008 | $589,745,979 | 92,005,135 | 92,005,135 |
| 2009 | $603,147,316 | 93,079,827 | 93,079,827 |
| 2010 | $808,639,461 | 103,724,588 | 103,724,588 |
| 2011 | $912,081,300 | 99,596,561 | 99,596,561 |
Note: Quantity represents Weight in kilograms
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