| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.48 | 13 |
| 2015 | 4.53 | 14 |
| 2014 | 4.56 | 16 |
| 2013 | 4.61 | 18 |
| 2012 | 4.66 | 18 |
| 2011 | 4.72 | 19 |
| 2010 | 4.79 | 18 |
| 2009 | 4.85 | 17 |
| 2008 | 4.92 | 18 |
| 2007 | 4.97 | 16 |
| 2006 | 5.02 | 16 |
| 2005 | 5.07 | 18 |
| 2004 | 3.97 | 39 |
| 2003 | 4 | 38 |
| 2002 | 4.04 | 40 |
| 2001 | 4.08 | 33 |
| 2000 | 4.11 | 33 |
| 1999 | 4.15 | 30 |
| 1998 | 4.16 | 29 |
| 1997 | 4.16 | 35 |
| 1996 | 4.13 | 37 |
| 1995 | 4.09 | 40 |
| 1994 | 4.16 | 43 |
| 1993 | 5.28 | 19 |
| 1992 | 5.26 | 21 |
| 1991 | 5.24 | 22 |
| 1990 | 5.23 | 29 |
| 1989 | 5.19 | 28 |
| 1988 | 5.2 | 33 |
| 1987 | 5.2 | 37 |
| 1986 | 5.23 | 40 |