| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 21.67 | 157 |
| 2015 | 21.99 | 157 |
| 2014 | 22.32 | 156 |
| 2013 | 22.66 | 157 |
| 2012 | 23 | 156 |
| 2011 | 23.35 | 156 |
| 2010 | 23.71 | 156 |
| 2009 | 24.07 | 156 |
| 2008 | 24.43 | 156 |
| 2007 | 24.8 | 156 |
| 2006 | 25.17 | 156 |
| 2005 | 25.55 | 156 |
| 2004 | 25.93 | 156 |
| 2003 | 26.31 | 155 |
| 2002 | 26.7 | 154 |
| 2001 | 27.09 | 153 |
| 2000 | 27.28 | 153 |
| 1999 | 27.4 | 153 |
| 1998 | 27.52 | 154 |
| 1997 | 27.64 | 154 |
| 1996 | 27.76 | 154 |
| 1995 | 27.88 | 154 |
| 1994 | 28 | 155 |
| 1993 | 28.12 | 155 |
| 1992 | 28.24 | 156 |
| 1991 | 28.37 | 156 |
| 1990 | 28.53 | 157 |
| 1989 | 28.72 | 154 |
| 1988 | 28.91 | 158 |
| 1987 | 29.1 | 158 |
| 1986 | 29.29 | 159 |