| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 22.42 | 93 |
| 2015 | 22.25 | 112 |
| 2014 | 21.65 | 116 |
| 2013 | 21.47 | 119 |
| 2012 | 21.83 | 122 |
| 2011 | 22.08 | 123 |
| 2010 | 22.62 | 117 |
| 2009 | 22.4 | 115 |
| 2008 | 23.43 | 111 |
| 2007 | 24.39 | 108 |
| 2006 | 24.49 | 107 |
| 2005 | 24.64 | 108 |
| 2004 | 25.4 | 105 |
| 2003 | 25.86 | 97 |
| 2002 | 26.84 | 88 |
| 2001 | 27.51 | 85 |
| 2000 | 27.9 | 83 |
| 1999 | 28.53 | 76 |
| 1998 | 28.97 | 72 |
| 1997 | 29.22 | 76 |
| 1996 | 28.96 | 77 |
| 1995 | 28.16 | 90 |