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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $369,504,000 | 49,622,737 | 49,622,737 |
| 2006 | $527,369,000 | 65,948,600 | 65,948,600 |
| 2007 | $787,210,000 | 78,678,900 | 78,678,900 |
| 2008 | $822,937,000 | 72,876,594 | 72,876,594 |
| 2009 | $601,839,000 | 61,506,711 | 61,506,711 |
| 2010 | $635,783,355 | 71,673,147 | 71,673,147 |
| 2011 | $880,991,525 | 86,121,158 | 86,121,158 |
Note: Quantity represents Weight in kilograms
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