| 时间 | 值 （亿千瓦时） | 世界排名 |
|---|---|---|
| 2014 | 24 | 98 |
| 2013 | 23 | 96 |
| 2012 | 22 | 91 |
| 2011 | 20 | 88 |
| 2010 | 19 | 87 |
| 2009 | 18 | 87 |
| 2008 | 18 | 85 |
| 2007 | 17 | 85 |
| 2006 | 17 | 84 |
| 2005 | 16 | 80 |
| 2004 | 15 | 77 |
| 2003 | 15 | 73 |
| 2002 | 15 | 73 |
| 2001 | 14 | 72 |
| 2000 | 13 | 69 |
| 1999 | 13 | 68 |
| 1998 | 13 | 64 |
| 1997 | 13 | 62 |
| 1996 | 12 | 60 |
| 1995 | 11 | 58 |
| 1994 | 11 | 57 |
| 1993 | 10 | 58 |
| 1992 | 10 | 57 |
| 1991 | 10 | 54 |
| 1990 | 10 | 53 |