2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $1,000,000 $2,000,000 $3,000,000 $4,000,000 $5,000,000 $6,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,895,856 | 4,190,155 | 5,598,683 |
| 2006 | $1,693,233 | 2,469,137 | 3,273,600 |
| 2007 | $5,377,127 | 7,284,068 | 10,544,880 |
| 2008 | $2,254,214 | 2,839,012 | 3,580,437 |
| 2009 | $1,599,401 | 1,707,901 | 1,933,262 |
| 2010 | $4,422,528 | 4,623,414 | 6,195,505 |
| 2011 | $5,331,432 | 4,400,181 | 6,554,015 |
Note: Quantity represents Volume in litres
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