| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 20.2 | 162 |
| 2015 | 20.42 | 163 |
| 2014 | 20.65 | 162 |
| 2013 | 20.87 | 162 |
| 2012 | 21.1 | 162 |
| 2011 | 21.33 | 163 |
| 2010 | 21.56 | 163 |
| 2009 | 21.79 | 163 |
| 2008 | 22.02 | 163 |
| 2007 | 22.26 | 163 |
| 2006 | 22.5 | 163 |
| 2005 | 22.74 | 163 |
| 2004 | 22.98 | 164 |
| 2003 | 23.22 | 164 |
| 2002 | 23.47 | 162 |
| 2001 | 23.66 | 162 |
| 2000 | 23.74 | 163 |
| 1999 | 23.82 | 164 |
| 1998 | 23.9 | 164 |
| 1997 | 23.98 | 164 |
| 1996 | 24.06 | 164 |
| 1995 | 24.14 | 165 |
| 1994 | 24.23 | 165 |
| 1993 | 24.31 | 165 |
| 1992 | 24.39 | 167 |
| 1991 | 24.47 | 168 |
| 1990 | 24.65 | 170 |
| 1989 | 24.87 | 167 |
| 1988 | 25.1 | 166 |
| 1987 | 25.33 | 167 |
| 1986 | 25.56 | 167 |