| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 19.22 | 171 |
| 2015 | 19.22 | 171 |
| 2014 | 19.22 | 170 |
| 2013 | 19.22 | 168 |
| 2012 | 19.22 | 169 |
| 2011 | 17.14 | 163 |
| 2010 | 18.4 | 167 |
| 2009 | 18.49 | 171 |
| 2008 | 18.69 | 173 |
| 2007 | 18.88 | 173 |
| 2006 | 19.01 | 171 |
| 2005 | 19.2 | 170 |
| 2004 | 19.21 | 169 |
| 2003 | 19.4 | 169 |
| 2002 | 19.25 | 168 |
| 2001 | 19.26 | 169 |
| 2000 | 19.35 | 172 |
| 1999 | 19.35 | 172 |
| 1998 | 19.39 | 172 |
| 1997 | 19.41 | 169 |
| 1996 | 19.44 | 170 |
| 1995 | 19.17 | 170 |
| 1994 | 19.35 | 167 |
| 1993 | 19.2 | 166 |
| 1992 | 19.13 | 168 |
| 1991 | 20.81 | 177 |