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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $172,756,000 | 826,361,800 | 826,361,800 |
| 2006 | $190,781,000 | 1,028,944,673 | 1,028,944,673 |
| 2007 | $240,849,000 | 1,159,799,400 | 1,159,799,400 |
| 2008 | $239,877,000 | 1,186,688,700 | 1,186,688,700 |
| 2009 | $225,796,000 | 1,051,510,898 | 1,051,510,898 |
| 2010 | $233,430,828 | 952,914,400 | 952,914,400 |
| 2011 | $331,313,935 | 951,436,928 | 951,436,928 |
Note: Quantity represents Weight in kilograms
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