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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,826,259 | 84,500,700 | 84,500,700 |
| 2006 | $16,375,917 | 66,751,000 | 66,751,000 |
| 2007 | $25,942,794 | 91,010,700 | 91,010,700 |
| 2008 | $29,857,828 | 64,079,400 | 64,079,400 |
| 2009 | $8,023,352 | 17,864,800 | 17,864,800 |
| 2010 | $5,019,898 | 17,323,700 | 17,323,700 |
| 2011 | $1,612,522 | 3,172,900 | 3,172,900 |
Note: Quantity represents Weight in kilograms
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