2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000 $25,000,000 $30,000,000 $35,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $30,348,602 | 1,084,081 | 170,543,589 |
| 2006 | $26,077,486 | 1,129,630 | 88,351,396 |
| 2007 | $25,773,243 | 923,007 | 208,834,964 |
| 2008 | $23,191,034 | 606,787 | 200,134,958 |
| 2009 | $24,564,777 | 651,920 | 140,987,588 |
| 2010 | $23,138,924 | 583,728 | 207,845,049 |
| 2011 | $28,726,099 | 747,947 | 230,166,137 |
Note: Quantity represents Number of items
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