| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.24 | 18 |
| 2015 | 4.27 | 21 |
| 2014 | 4.3 | 23 |
| 2013 | 4.34 | 26 |
| 2012 | 4.36 | 28 |
| 2011 | 4.38 | 28 |
| 2010 | 4.39 | 28 |
| 2009 | 4.41 | 28 |
| 2008 | 4.43 | 28 |
| 2007 | 4.44 | 27 |
| 2006 | 4.44 | 27 |
| 2005 | 4.44 | 29 |
| 2004 | 4.44 | 25 |
| 2003 | 4.44 | 25 |
| 2002 | 4.45 | 27 |
| 2001 | 4.46 | 22 |
| 2000 | 4.47 | 21 |
| 1999 | 4.44 | 22 |
| 1998 | 4.48 | 23 |
| 1997 | 4.53 | 26 |
| 1996 | 4.6 | 22 |
| 1995 | 4.68 | 21 |
| 1994 | 4.76 | 23 |
| 1993 | 4.85 | 27 |
| 1992 | 4.93 | 30 |
| 1991 | 5.01 | 31 |
| 1990 | 4.93 | 34 |
| 1989 | 4.04 | 65 |
| 1988 | 4.12 | 69 |
| 1987 | 4.19 | 68 |
| 1986 | 4.26 | 67 |