| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 30.58 | 160 |
| 2015 | 30.66 | 160 |
| 2014 | 30.05 | 159 |
| 2013 | 29.81 | 160 |
| 2012 | 30.05 | 160 |
| 2011 | 30.1 | 159 |
| 2010 | 30.69 | 157 |
| 2009 | 32.81 | 156 |
| 2008 | 33.39 | 153 |
| 2007 | 34 | 153 |
| 2006 | 34.69 | 148 |
| 2005 | 34.22 | 149 |
| 2004 | 33.6 | 150 |
| 2003 | 33.3 | 151 |
| 2002 | 32.81 | 150 |
| 2001 | 32.42 | 151 |
| 2000 | 32.21 | 155 |
| 1999 | 32.92 | 147 |
| 1998 | 30.63 | 155 |
| 1997 | 30.63 | 154 |
| 1996 | 29.9 | 153 |
| 1995 | 29.63 | 155 |
| 1994 | 29.65 | 152 |
| 1993 | 29.24 | 153 |
| 1992 | 27.36 | 158 |
| 1991 | 26.93 | 159 |