| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.962 | 128 |
| 2015 | 49.97 | 126 |
| 2014 | 49.977 | 126 |
| 2013 | 49.982 | 127 |
| 2012 | 49.986 | 126 |
| 2011 | 49.991 | 129 |
| 2010 | 49.999 | 128 |
| 2009 | 50.009 | 127 |
| 2008 | 50.022 | 126 |
| 2007 | 50.036 | 124 |
| 2006 | 50.052 | 122 |
| 2005 | 50.068 | 121 |
| 2004 | 50.084 | 122 |
| 2003 | 50.101 | 123 |
| 2002 | 50.118 | 122 |
| 2001 | 50.135 | 122 |
| 2000 | 50.154 | 120 |
| 1999 | 50.173 | 118 |
| 1998 | 50.194 | 119 |
| 1997 | 50.214 | 118 |
| 1996 | 50.234 | 115 |
| 1995 | 50.254 | 114 |
| 1994 | 50.272 | 113 |
| 1993 | 50.289 | 109 |
| 1992 | 50.306 | 107 |
| 1991 | 50.322 | 107 |
| 1990 | 50.337 | 107 |
| 1989 | 50.352 | 105 |
| 1988 | 50.367 | 103 |
| 1987 | 50.381 | 99 |
| 1986 | 50.396 | 95 |