| 季度 | 单位：千克标准煤 |
| 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 » |
| 2008-12 | 购买后可见 » |
| 2008-06 | 购买后可见 » |
| 2007-06 | 购买后可见 » |
| 2006-12 | 购买后可见 » |
| 2006-06 | 购买后可见 » |
| 2005-12 | 购买后可见 » |
| 2005-06 | 购买后可见 » |
| 2004-12 | 购买后可见 » |
| 2004-06 | 购买后可见 » |
| 2003-12 | 购买后可见 » |
| 2003-06 | 购买后可见 » |
| 2002-12 | 购买后可见 » |
| 2001-12 | 890.00 |
| 2001-06 | 906.00 |
| 2000-12 | 986.00 |
| 1999-12 | 1053.00 |
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