| 时间 |
值 （亿千瓦时） |
世界排名 |
| 2014 |
9 |
102 |
| 2013 |
9 |
101 |
| 2012 |
9 |
93 |
| 2011 |
13 |
89 |
| 2010 |
13 |
88 |
| 2009 |
13 |
88 |
| 2008 |
12 |
87 |
| 2007 |
13 |
87 |
| 2006 |
12 |
85 |
| 2005 |
12 |
81 |
| 2004 |
12 |
78 |
| 2003 |
12 |
74 |
| 2002 |
11 |
74 |
| 2001 |
11 |
73 |
| 2000 |
11 |
70 |
| 1999 |
11 |
69 |
| 1998 |
11 |
65 |
| 1997 |
10 |
63 |
| 1996 |
10 |
62 |
| 1995 |
10 |
60 |
| 1994 |
10 |
59 |
| 1993 |
9 |
60 |