|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical energy (optional heading) | $719,513,611 | $619,190,035 | $536,436,565 | $1,026,659,949 | $451,095,894 | $785,407,943 | $1,282,198,553 |
| Total | $719,513,611 | $619,190,035 | $536,436,565 | $1,026,659,949 | $451,095,894 | $785,407,943 | $1,282,198,553 |
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