| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 25.26 | 165 |
| 2015 | 24.33 | 165 |
| 2014 | 23.56 | 165 |
| 2013 | 22.85 | 165 |
| 2012 | 22.21 | 164 |
| 2011 | 21.7 | 164 |
| 2010 | 21.32 | 165 |
| 2009 | 21.25 | 164 |
| 2008 | 21.36 | 166 |
| 2007 | 21.58 | 167 |
| 2006 | 21.77 | 168 |
| 2005 | 21.84 | 170 |
| 2004 | 21.81 | 171 |
| 2003 | 21.64 | 172 |
| 2002 | 21.36 | 173 |
| 2001 | 20.97 | 170 |
| 2000 | 20.52 | 170 |
| 1999 | 19.94 | 170 |
| 1998 | 19.31 | 166 |
| 1997 | 18.64 | 163 |
| 1996 | 17.93 | 160 |
| 1995 | 17.21 | 157 |
| 1994 | 16.66 | 154 |
| 1993 | 16.1 | 152 |
| 1992 | 15.53 | 150 |
| 1991 | 14.95 | 149 |
| 1990 | 14.38 | 148 |