| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 51.808 | 22 |
| 2015 | 51.817 | 22 |
| 2014 | 51.824 | 21 |
| 2013 | 51.828 | 21 |
| 2012 | 51.831 | 21 |
| 2011 | 51.833 | 21 |
| 2010 | 51.834 | 21 |
| 2009 | 51.835 | 21 |
| 2008 | 51.834 | 21 |
| 2007 | 51.834 | 20 |
| 2006 | 51.837 | 19 |
| 2005 | 51.842 | 19 |
| 2004 | 51.851 | 19 |
| 2003 | 51.864 | 19 |
| 2002 | 51.874 | 20 |
| 2001 | 51.874 | 21 |
| 2000 | 51.858 | 20 |
| 1999 | 51.826 | 19 |
| 1998 | 51.78 | 19 |
| 1997 | 51.727 | 20 |
| 1996 | 51.675 | 18 |
| 1995 | 51.629 | 19 |
| 1994 | 51.59 | 19 |
| 1993 | 51.557 | 20 |
| 1992 | 51.533 | 22 |
| 1991 | 51.519 | 24 |
| 1990 | 51.515 | 23 |
| 1989 | 51.524 | 21 |
| 1988 | 51.544 | 21 |
| 1987 | 51.569 | 21 |
| 1986 | 51.592 | 19 |