| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.909 | 133 |
| 2015 | 49.924 | 131 |
| 2014 | 49.94 | 131 |
| 2013 | 49.958 | 130 |
| 2012 | 49.976 | 129 |
| 2011 | 49.995 | 127 |
| 2010 | 50.013 | 126 |
| 2009 | 50.032 | 126 |
| 2008 | 50.051 | 120 |
| 2007 | 50.069 | 119 |
| 2006 | 50.088 | 119 |
| 2005 | 50.107 | 118 |
| 2004 | 50.125 | 118 |
| 2003 | 50.142 | 118 |
| 2002 | 50.159 | 118 |
| 2001 | 50.174 | 118 |
| 2000 | 50.189 | 118 |
| 1999 | 50.203 | 116 |
| 1998 | 50.216 | 116 |
| 1997 | 50.229 | 116 |
| 1996 | 50.241 | 114 |
| 1995 | 50.254 | 113 |
| 1994 | 50.265 | 114 |
| 1993 | 50.275 | 110 |
| 1992 | 50.283 | 110 |
| 1991 | 50.289 | 109 |
| 1990 | 50.294 | 111 |
| 1989 | 50.297 | 110 |
| 1988 | 50.299 | 110 |
| 1987 | 50.3 | 105 |
| 1986 | 50.3 | 105 |