| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.49 | 7 |
| 2015 | 50.54 | 7 |
| 2014 | 50.59 | 7 |
| 2013 | 50.61 | 7 |
| 2012 | 50.63 | 6 |
| 2011 | 50.66 | 6 |
| 2010 | 50.67 | 7 |
| 2009 | 50.68 | 7 |
| 2008 | 50.68 | 7 |
| 2007 | 50.66 | 7 |
| 2006 | 50.64 | 6 |
| 2005 | 50.39 | 8 |
| 2004 | 50.14 | 9 |
| 2003 | 49.88 | 12 |
| 2002 | 49.61 | 13 |
| 2001 | 49.32 | 13 |
| 2000 | 49.02 | 15 |
| 1999 | 48.71 | 20 |
| 1998 | 48.4 | 23 |
| 1997 | 48.06 | 26 |
| 1996 | 47.72 | 27 |
| 1995 | 47.36 | 34 |
| 1994 | 46.96 | 38 |
| 1993 | 46.54 | 41 |
| 1992 | 46.1 | 48 |
| 1991 | 45.63 | 52 |
| 1990 | 45.14 | 57 |