| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 51.374 | 32 |
| 2015 | 51.404 | 30 |
| 2014 | 51.44 | 30 |
| 2013 | 51.482 | 29 |
| 2012 | 51.524 | 27 |
| 2011 | 51.556 | 25 |
| 2010 | 51.571 | 25 |
| 2009 | 51.567 | 26 |
| 2008 | 51.545 | 26 |
| 2007 | 51.508 | 29 |
| 2006 | 51.46 | 29 |
| 2005 | 51.405 | 30 |
| 2004 | 51.342 | 32 |
| 2003 | 51.273 | 36 |
| 2002 | 51.205 | 38 |
| 2001 | 51.149 | 42 |
| 2000 | 51.112 | 45 |
| 1999 | 51.099 | 46 |
| 1998 | 51.109 | 45 |
| 1997 | 51.136 | 44 |
| 1996 | 51.169 | 40 |
| 1995 | 51.2 | 40 |
| 1994 | 51.224 | 40 |
| 1993 | 51.243 | 38 |
| 1992 | 51.261 | 36 |
| 1991 | 51.285 | 34 |
| 1990 | 51.32 | 33 |
| 1989 | 51.37 | 33 |
| 1988 | 51.432 | 26 |
| 1987 | 51.497 | 25 |
| 1986 | 51.551 | 23 |