| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.138 | 116 |
| 2015 | 50.156 | 113 |
| 2014 | 50.173 | 109 |
| 2013 | 50.189 | 107 |
| 2012 | 50.205 | 107 |
| 2011 | 50.226 | 106 |
| 2010 | 50.252 | 105 |
| 2009 | 50.288 | 104 |
| 2008 | 50.33 | 103 |
| 2007 | 50.371 | 100 |
| 2006 | 50.397 | 100 |
| 2005 | 50.401 | 99 |
| 2004 | 50.375 | 100 |
| 2003 | 50.323 | 104 |
| 2002 | 50.257 | 112 |
| 2001 | 50.194 | 115 |
| 2000 | 50.145 | 121 |
| 1999 | 50.117 | 124 |
| 1998 | 50.106 | 123 |
| 1997 | 50.107 | 125 |
| 1996 | 50.108 | 124 |
| 1995 | 50.1 | 125 |
| 1994 | 50.079 | 125 |
| 1993 | 50.05 | 125 |
| 1992 | 50.018 | 128 |
| 1991 | 49.994 | 131 |
| 1990 | 49.985 | 131 |
| 1989 | 49.997 | 130 |
| 1988 | 50.027 | 126 |
| 1987 | 50.069 | 124 |
| 1986 | 50.116 | 120 |