| 季度 | 单位：亿千瓦时 |
| 2011-06 | 购买后可见 » |
| 2010-12 | 购买后可见 » |
| 2010-06 | 购买后可见 » |
| 2009-12 | 购买后可见 » |
| 2009-06 | 购买后可见 » |
| 2008-12 | 购买后可见 » |
| 2008-06 | 购买后可见 » |
| 2007-12 | 购买后可见 » |
| 2007-06 | 购买后可见 » |
| 2006-12 | 购买后可见 » |
| 2006-09 | 购买后可见 » |
| 2006-06 | 购买后可见 » |
| 2006-03 | 购买后可见 » |
| 2005-12 | 3.46 |
| 2005-09 | 2.51 |
| 2005-06 | 1.59 |
| 2004-12 | 2.68 |
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