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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $117,820,037 | 6,221,917 | 6,221,917 |
| 2006 | $145,275,682 | 6,920,352 | 6,920,352 |
| 2007 | $3,171,511,565 | 166,613,093 | 166,613,093 |
| 2008 | $3,927,674,192 | 196,412,951 | 196,412,951 |
| 2009 | $3,659,514,057 | 168,619,094 | 168,619,094 |
| 2010 | $5,470,309,384 | 222,621,151 | 222,621,151 |
| 2011 | $5,615,059,248 | 224,549,406 | 224,549,406 |
Note: Quantity represents Weight in kilograms
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