| 年份 | 单位：千瓦小时/万元 |
| 2012 | 购买后可见 » |
| 2008 | 购买后可见 » |
| 2005 | 购买后可见 » |
| 2002 | 购买后可见 » |
| 2001 | 购买后可见 » |
| 2000 | 购买后可见 » |
| 1999 | 购买后可见 » |
| 1998 | 购买后可见 » |
| 1997 | 购买后可见 » |
| 1996 | 购买后可见 » |
| 1995 | 1697.00 |
| 1994 | 2065.00 |
| 1993 | 2613.00 |
| 1992 | 3104.00 |
| 1991 | 3317.00 |
| 1990 | 3465.00 |
| 1989 | 3601.00 |
| 1988 | 3807.00 |
| 1987 | 4339.00 |
| 1986 | 4572.00 |
| 1985 | 4751.00 |
| 1984 | 5387.00 |
| 1983 | 5989.00 |
| 1982 | 6221.00 |
| 1981 | 6379.00 |
| 1980 | 6605.00 |
| 1979 | 6908.00 |
| 1978 | 6962.00 |
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