|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $251,870,325 | $254,300,305 | $229,343,940 | $215,703,319 | $237,975,317 | $167,574,396 | $200,207,981 |
| Total | $251,870,325 | $254,300,305 | $229,343,940 | $215,703,319 | $237,975,317 | $167,574,396 | $200,207,981 |
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