| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 23.23 | 177 |
| 2015 | 23.13 | 177 |
| 2014 | 23.07 | 177 |
| 2013 | 23.15 | 176 |
| 2012 | 23.2 | 176 |
| 2011 | 23.26 | 175 |
| 2010 | 24.05 | 174 |
| 2009 | 24.84 | 172 |
| 2008 | 25.66 | 171 |
| 2007 | 26.51 | 170 |
| 2006 | 27.37 | 169 |
| 2005 | 28.25 | 168 |
| 2004 | 29.16 | 166 |
| 2003 | 30.05 | 166 |
| 2002 | 30.93 | 166 |
| 2001 | 31.81 | 164 |
| 2000 | 32.69 | 163 |
| 1999 | 33.6 | 160 |
| 1998 | 34.48 | 157 |
| 1997 | 35.34 | 151 |
| 1996 | 36.17 | 148 |
| 1995 | 37 | 140 |
| 1994 | 37.99 | 137 |
| 1993 | 38.88 | 132 |
| 1992 | 39.67 | 131 |
| 1991 | 40.38 | 129 |
| 1990 | 40.02 | 128 |