| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 362.86 | 1 |
| 2014 | 361.34 | 1 |
| 2013 | 350.57 | 1 |
| 2012 | 336.07 | 1 |
| 2011 | 328.23 | 1 |
| 2010 | 325.42 | 2 |
| 2009 | 324.44 | 2 |
| 2008 | 299.6 | 2 |
| 2007 | 297.36 | 2 |
| 2006 | 274.8 | 2 |
| 2005 | 251.71 | 2 |
| 2004 | 260.67 | 2 |
| 2003 | 254.5 | 1 |
| 2002 | 231.96 | 1 |
| 2001 | 226.53 | 1 |
| 2000 | 224.39 | 2 |
| 1999 | 213.47 | 2 |
| 1998 | 193.77 | 2 |
| 1997 | 166.11 | 2 |
| 1996 | 169.83 | 2 |
| 1995 | 166.67 | 2 |
| 1994 | 160.59 | 2 |
| 1993 | 162.02 | 2 |
| 1992 | 163.29 | 2 |
| 1991 | 175.73 | 3 |