| 时间 | 值 （亿千瓦时） | 世界排名 |
|---|---|---|
| 2014 | 455 | 49 |
| 2013 | 433 | 48 |
| 2012 | 399 | 47 |
| 2011 | 392 | 45 |
| 2010 | 359 | 48 |
| 2009 | 329 | 48 |
| 2008 | 324 | 48 |
| 2007 | 299 | 49 |
| 2006 | 274 | 50 |
| 2005 | 255 | 50 |
| 2004 | 243 | 49 |
| 2003 | 229 | 47 |
| 2002 | 220 | 47 |
| 2001 | 208 | 46 |
| 2000 | 199 | 43 |
| 1999 | 190 | 44 |
| 1998 | 186 | 43 |
| 1997 | 179 | 42 |
| 1996 | 173 | 41 |
| 1995 | 161 | 40 |
| 1994 | 159 | 40 |
| 1993 | 148 | 41 |
| 1992 | 131 | 40 |
| 1991 | 145 | 38 |
| 1990 | 138 | 39 |
| 1989 | 137 | 35 |
| 1988 | 136 | 34 |
| 1987 | 140 | 32 |
| 1986 | 129 | 32 |