|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $716,680,783 | $723,020,601 | $858,720,147 | $991,729,636 | $1,078,853,779 | $1,173,191,803 | $1,237,598,319 |
| Total | $716,680,783 | $723,020,601 | $858,720,147 | $991,729,636 | $1,078,853,779 | $1,173,191,803 | $1,237,598,319 |
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