| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 4.32 | 14 |
| 2015 | 4.4 | 19 |
| 2014 | 4.48 | 20 |
| 2013 | 4.56 | 22 |
| 2012 | 4.62 | 19 |
| 2011 | 4.68 | 20 |
| 2010 | 4.74 | 20 |
| 2009 | 4.76 | 20 |
| 2008 | 4.79 | 22 |
| 2007 | 4.8 | 17 |
| 2006 | 4.81 | 17 |
| 2005 | 4.82 | 21 |
| 2004 | 4.82 | 21 |
| 2003 | 4.83 | 22 |
| 2002 | 4.85 | 19 |
| 2001 | 4.86 | 16 |
| 2000 | 4.05 | 35 |
| 1999 | 4.06 | 34 |
| 1998 | 4.06 | 33 |
| 1997 | 4.07 | 38 |
| 1996 | 4.09 | 38 |
| 1995 | 4.1 | 38 |
| 1994 | 4.11 | 46 |
| 1993 | 4.14 | 47 |
| 1992 | 4.17 | 50 |
| 1991 | 4.2 | 55 |
| 1990 | 5.44 | 24 |
| 1989 | 5.51 | 23 |
| 1988 | 5.56 | 28 |
| 1987 | 5.59 | 29 |
| 1986 | 5.6 | 31 |