|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $33,018,348 | $71,344,669 | $106,371,870 | $157,317,016 | $200,469,941 | $237,785,360 | $180,236,697 |
| Total | $33,018,348 | $71,344,669 | $106,371,870 | $157,317,016 | $200,469,941 | $237,785,360 | $180,236,697 |
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