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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $306,765,441 | 140,281,100 | 140,281,100 |
| 2006 | $360,169,754 | 151,823,200 | 151,823,200 |
| 2007 | $449,864,465 | 142,070,900 | 142,070,900 |
| 2008 | $428,898,897 | 139,827,800 | 139,827,800 |
| 2009 | $232,734,172 | 95,841,100 | 95,841,100 |
| 2010 | $295,952,642 | 112,670,905 | 112,670,905 |
| 2011 | $300,769,530 | 100,476,300 | 100,476,300 |
Note: Quantity represents Weight in kilograms
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