| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.53 | 156 |
| 2015 | 52.51 | 156 |
| 2014 | 52.43 | 156 |
| 2013 | 52.07 | 158 |
| 2012 | 51.74 | 159 |
| 2011 | 51.46 | 158 |
| 2010 | 51.26 | 158 |
| 2009 | 51.24 | 160 |
| 2008 | 51.29 | 161 |
| 2007 | 51.41 | 161 |
| 2006 | 51.55 | 159 |
| 2005 | 51.69 | 159 |
| 2004 | 51.5 | 160 |
| 2003 | 51.29 | 162 |
| 2002 | 51.05 | 164 |
| 2001 | 50.83 | 165 |
| 2000 | 50.65 | 165 |
| 1999 | 50.9 | 165 |
| 1998 | 50.94 | 165 |
| 1997 | 51.02 | 162 |
| 1996 | 51.11 | 162 |
| 1995 | 51.19 | 160 |
| 1994 | 51.2 | 160 |
| 1993 | 51.19 | 161 |
| 1992 | 51.14 | 161 |
| 1991 | 51.06 | 162 |
| 1990 | 51 | 163 |