| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.023 | 17 |
| 2015 | 52.033 | 17 |
| 2014 | 52.027 | 18 |
| 2013 | 52.005 | 18 |
| 2012 | 51.983 | 18 |
| 2011 | 51.98 | 18 |
| 2010 | 52.011 | 18 |
| 2009 | 52.086 | 14 |
| 2008 | 52.2 | 14 |
| 2007 | 52.328 | 14 |
| 2006 | 52.435 | 12 |
| 2005 | 52.494 | 11 |
| 2004 | 52.493 | 11 |
| 2003 | 52.435 | 12 |
| 2002 | 52.334 | 12 |
| 2001 | 52.214 | 12 |
| 2000 | 52.099 | 13 |
| 1999 | 51.991 | 14 |
| 1998 | 51.89 | 16 |
| 1997 | 51.786 | 18 |
| 1996 | 51.669 | 19 |
| 1995 | 51.532 | 24 |
| 1994 | 51.37 | 31 |
| 1993 | 51.191 | 39 |
| 1992 | 51 | 49 |
| 1991 | 50.801 | 60 |
| 1990 | 50.603 | 82 |
| 1989 | 50.403 | 99 |
| 1988 | 50.201 | 115 |
| 1987 | 49.996 | 129 |
| 1986 | 49.793 | 136 |