| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 51.476 | 29 |
| 2015 | 51.499 | 28 |
| 2014 | 51.517 | 28 |
| 2013 | 51.53 | 26 |
| 2012 | 51.54 | 26 |
| 2011 | 51.55 | 26 |
| 2010 | 51.562 | 26 |
| 2009 | 51.575 | 25 |
| 2008 | 51.588 | 25 |
| 2007 | 51.605 | 25 |
| 2006 | 51.631 | 25 |
| 2005 | 51.668 | 24 |
| 2004 | 51.724 | 22 |
| 2003 | 51.795 | 21 |
| 2002 | 51.86 | 21 |
| 2001 | 51.893 | 20 |
| 2000 | 51.875 | 18 |
| 1999 | 51.796 | 21 |
| 1998 | 51.666 | 23 |
| 1997 | 51.513 | 26 |
| 1996 | 51.379 | 32 |
| 1995 | 51.297 | 38 |
| 1994 | 51.278 | 38 |
| 1993 | 51.314 | 34 |
| 1992 | 51.402 | 28 |
| 1991 | 51.534 | 22 |
| 1990 | 51.699 | 19 |
| 1989 | 51.9 | 15 |
| 1988 | 52.138 | 12 |
| 1987 | 52.389 | 11 |
| 1986 | 52.622 | 10 |