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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $649,731,596 | 1,081,387,534 | 1,081,387,534 |
| 2006 | $727,436,946 | 1,060,409,858 | 1,060,409,858 |
| 2007 | $872,794,092 | 1,098,982,942 | 1,098,982,942 |
| 2008 | $793,217,702 | 857,373,753 | 857,373,753 |
| 2009 | $238,448,008 | 295,998,208 | 295,998,208 |
| 2010 | $339,721,657 | 434,225,817 | 434,225,817 |
Note: Quantity represents Weight in kilograms
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