| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.977 | 124 |
| 2015 | 49.978 | 125 |
| 2014 | 49.978 | 125 |
| 2013 | 49.978 | 128 |
| 2012 | 49.98 | 128 |
| 2011 | 49.982 | 130 |
| 2010 | 49.985 | 131 |
| 2009 | 49.991 | 130 |
| 2008 | 49.998 | 130 |
| 2007 | 50.007 | 127 |
| 2006 | 50.016 | 126 |
| 2005 | 50.025 | 126 |
| 2004 | 50.035 | 126 |
| 2003 | 50.044 | 126 |
| 2002 | 50.053 | 126 |
| 2001 | 50.062 | 127 |
| 2000 | 50.071 | 126 |
| 1999 | 50.081 | 125 |
| 1998 | 50.091 | 124 |
| 1997 | 50.101 | 126 |
| 1996 | 50.11 | 123 |
| 1995 | 50.117 | 123 |
| 1994 | 50.122 | 123 |
| 1993 | 50.125 | 123 |
| 1992 | 50.126 | 122 |
| 1991 | 50.127 | 124 |
| 1990 | 50.128 | 124 |
| 1989 | 50.131 | 122 |
| 1988 | 50.134 | 121 |
| 1987 | 50.137 | 118 |
| 1986 | 50.142 | 118 |