| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.381 | 92 |
| 2015 | 50.385 | 94 |
| 2014 | 50.392 | 92 |
| 2013 | 50.401 | 91 |
| 2012 | 50.413 | 92 |
| 2011 | 50.426 | 91 |
| 2010 | 50.438 | 90 |
| 2009 | 50.45 | 91 |
| 2008 | 50.46 | 91 |
| 2007 | 50.47 | 91 |
| 2006 | 50.48 | 89 |
| 2005 | 50.491 | 87 |
| 2004 | 50.503 | 87 |
| 2003 | 50.516 | 87 |
| 2002 | 50.529 | 86 |
| 2001 | 50.539 | 85 |
| 2000 | 50.546 | 87 |
| 1999 | 50.548 | 85 |
| 1998 | 50.546 | 85 |
| 1997 | 50.541 | 84 |
| 1996 | 50.532 | 86 |
| 1995 | 50.521 | 89 |
| 1994 | 50.507 | 90 |
| 1993 | 50.491 | 91 |
| 1992 | 50.474 | 91 |
| 1991 | 50.456 | 94 |
| 1990 | 50.438 | 96 |
| 1989 | 50.421 | 96 |
| 1988 | 50.405 | 96 |
| 1987 | 50.39 | 97 |
| 1986 | 50.376 | 97 |