|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $552,778,373 | $255,137,019 | $257,397,384 | $289,595,178 | $169,819,396 | $193,210,016 | $221,549,841 |
| Total | $552,778,373 | $255,137,019 | $257,397,384 | $289,595,178 | $169,819,396 | $193,210,016 | $221,549,841 |
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