| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.138 | 115 |
| 2015 | 50.145 | 116 |
| 2014 | 50.154 | 112 |
| 2013 | 50.162 | 110 |
| 2012 | 50.171 | 110 |
| 2011 | 50.18 | 111 |
| 2010 | 50.187 | 112 |
| 2009 | 50.193 | 112 |
| 2008 | 50.198 | 112 |
| 2007 | 50.201 | 114 |
| 2006 | 50.204 | 114 |
| 2005 | 50.207 | 114 |
| 2004 | 50.209 | 115 |
| 2003 | 50.211 | 114 |
| 2002 | 50.212 | 114 |
| 2001 | 50.211 | 114 |
| 2000 | 50.209 | 114 |
| 1999 | 50.204 | 115 |
| 1998 | 50.197 | 118 |
| 1997 | 50.188 | 120 |
| 1996 | 50.176 | 120 |
| 1995 | 50.163 | 120 |
| 1994 | 50.147 | 121 |
| 1993 | 50.13 | 121 |
| 1992 | 50.111 | 123 |
| 1991 | 50.091 | 128 |
| 1990 | 50.071 | 128 |
| 1989 | 50.051 | 126 |
| 1988 | 50.031 | 125 |
| 1987 | 50.011 | 127 |
| 1986 | 49.991 | 128 |