| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 28.66 | 187 |
| 2015 | 28.55 | 187 |
| 2014 | 28.46 | 183 |
| 2013 | 28.38 | 182 |
| 2012 | 28.32 | 182 |
| 2011 | 28.27 | 182 |
| 2010 | 28.24 | 181 |
| 2009 | 28.22 | 181 |
| 2008 | 28.22 | 180 |
| 2007 | 28.23 | 180 |
| 2006 | 28.26 | 179 |
| 2005 | 28.3 | 178 |
| 2004 | 28.36 | 177 |
| 2003 | 28.43 | 175 |
| 2002 | 28.52 | 173 |
| 2001 | 28.61 | 173 |
| 2000 | 28.69 | 171 |
| 1999 | 28.78 | 171 |
| 1998 | 28.87 | 170 |
| 1997 | 28.96 | 170 |
| 1996 | 29.05 | 170 |
| 1995 | 29.14 | 169 |
| 1994 | 29.23 | 169 |
| 1993 | 29.32 | 167 |
| 1992 | 29.4 | 167 |
| 1991 | 29.49 | 166 |
| 1990 | 29.58 | 161 |
| 1989 | 29.67 | 156 |
| 1988 | 29.76 | 156 |
| 1987 | 29.85 | 154 |
| 1986 | 29.94 | 153 |