|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Electrical energy (optional heading) | $3,991,527,036 | $5,347,699,771 | $1,635,593,045 | $1,929,289,199 | $1,549,581,808 | $1,073,206,561 |
| Total | $3,991,527,036 | $5,347,699,771 | $1,635,593,045 | $1,929,289,199 | $1,549,581,808 | $1,073,206,561 |
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