| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 5.69 | 40 |
| 2015 | 5.74 | 41 |
| 2014 | 5.77 | 42 |
| 2013 | 5.78 | 41 |
| 2012 | 5.76 | 40 |
| 2011 | 5.73 | 38 |
| 2010 | 5.7 | 37 |
| 2009 | 5.68 | 36 |
| 2008 | 5.66 | 35 |
| 2007 | 5.64 | 35 |
| 2006 | 5.62 | 34 |
| 2005 | 5.59 | 33 |
| 2004 | 5.62 | 31 |
| 2003 | 5.65 | 34 |
| 2002 | 5.67 | 35 |
| 2001 | 5.69 | 34 |
| 2000 | 5.68 | 35 |
| 1999 | 5.76 | 37 |
| 1998 | 5.82 | 41 |
| 1997 | 5.87 | 40 |
| 1996 | 5.91 | 41 |
| 1995 | 5.93 | 43 |
| 1994 | 5.79 | 36 |
| 1993 | 5.65 | 33 |
| 1992 | 5.5 | 26 |
| 1991 | 5.35 | 23 |
| 1990 | 5.19 | 20 |
| 1989 | 5.17 | 16 |
| 1988 | 5.16 | 17 |
| 1987 | 5.15 | 19 |
| 1986 | 5.13 | 21 |