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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,109,231,791 | 6,207,229 | 10,398,012,053 |
| 2006 | $1,220,135,555 | 4,673,221 | 11,997,375,726 |
| 2007 | $1,334,579,654 | 4,439,425 | 11,297,878,747 |
| 2008 | $1,299,905,862 | 0 | 11,218,271,246 |
| 2009 | $1,020,265,538 | 3,035,623 | 8,244,449,219 |
| 2010 | $1,536,651,490 | 4,796,238 | 13,187,534,006 |
| 2011 | $1,469,963,567 | 4,793,672 | 11,424,087,800 |
Note: Quantity represents Number of items
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