|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $173,838,811 | $211,648,538 | $196,185,697 | $402,675,282 | $189,708,712 | $185,457,558 | $165,659,709 |
| Total | $173,838,811 | $211,648,538 | $196,185,697 | $402,675,282 | $189,708,712 | $185,457,558 | $165,659,709 |
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