| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 22.23 | 3 |
| 2015 | 24.245 | 6 |
| 2014 | 22.361 | 8 |
| 2013 | 21.727 | 9 |
| 2012 | 23.899 | 9 |
| 2011 | 25.275 | 5 |
| 2010 | 23.109 | 9 |
| 2009 | 26.355 | 6 |
| 2008 | 25.69 | 6 |
| 2007 | 25.83 | 8 |
| 2006 | 23.2 | 15 |
| 2005 | 26.6 | 11 |
| 2004 | 29.27 | 12 |
| 2003 | 19.13 | 30 |
| 2002 | 24.81 | 20 |
| 2001 | 37.33 | 10 |
| 2000 | 51.9 | 7 |
| 1999 | 60.86 | 4 |
| 1998 | 73.44 | 3 |
| 1997 | 49.38 | 12 |
| 1996 | 65.02 | 8 |