| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.808 | 57 |
| 2015 | 50.827 | 57 |
| 2014 | 50.847 | 57 |
| 2013 | 50.866 | 55 |
| 2012 | 50.882 | 55 |
| 2011 | 50.893 | 55 |
| 2010 | 50.895 | 56 |
| 2009 | 50.888 | 59 |
| 2008 | 50.873 | 61 |
| 2007 | 50.852 | 61 |
| 2006 | 50.833 | 62 |
| 2005 | 50.822 | 62 |
| 2004 | 50.819 | 62 |
| 2003 | 50.825 | 62 |
| 2002 | 50.843 | 62 |
| 2001 | 50.878 | 61 |
| 2000 | 50.932 | 54 |
| 1999 | 51.01 | 52 |
| 1998 | 51.109 | 44 |
| 1997 | 51.212 | 39 |
| 1996 | 51.296 | 37 |
| 1995 | 51.344 | 35 |
| 1994 | 51.347 | 34 |
| 1993 | 51.31 | 35 |
| 1992 | 51.252 | 38 |
| 1991 | 51.203 | 39 |
| 1990 | 51.185 | 41 |
| 1989 | 51.21 | 37 |
| 1988 | 51.272 | 36 |
| 1987 | 51.357 | 31 |
| 1986 | 51.44 | 27 |