| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 51.712 | 23 |
| 2015 | 51.73 | 23 |
| 2014 | 51.746 | 23 |
| 2013 | 51.759 | 22 |
| 2012 | 51.769 | 22 |
| 2011 | 51.776 | 22 |
| 2010 | 51.778 | 22 |
| 2009 | 51.778 | 22 |
| 2008 | 51.773 | 22 |
| 2007 | 51.764 | 22 |
| 2006 | 51.751 | 21 |
| 2005 | 51.733 | 21 |
| 2004 | 51.709 | 23 |
| 2003 | 51.68 | 23 |
| 2002 | 51.65 | 25 |
| 2001 | 51.623 | 26 |
| 2000 | 51.601 | 26 |
| 1999 | 51.586 | 25 |
| 1998 | 51.575 | 25 |
| 1997 | 51.568 | 25 |
| 1996 | 51.562 | 24 |
| 1995 | 51.557 | 21 |
| 1994 | 51.552 | 22 |
| 1993 | 51.546 | 22 |
| 1992 | 51.538 | 21 |
| 1991 | 51.521 | 23 |
| 1990 | 51.495 | 24 |
| 1989 | 51.457 | 27 |
| 1988 | 51.407 | 28 |
| 1987 | 51.349 | 32 |
| 1986 | 51.29 | 34 |