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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $237,131,246 | 351,009,082 | 351,009,082 |
| 2006 | $248,167,299 | 381,451,919 | 381,451,919 |
| 2007 | $293,858,939 | 421,548,771 | 421,548,771 |
| 2008 | $499,462,426 | 519,296,472 | 519,296,472 |
| 2009 | $283,504,047 | 344,692,301 | 344,692,301 |
| 2010 | $214,319,402 | 288,863,944 | 288,863,944 |
| 2011 | $272,285,653 | 318,797,106 | 318,797,106 |
Note: Quantity represents Weight in kilograms
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