| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 11.06 | 59 |
| 2015 | 10.93 | 58 |
| 2014 | 10.81 | 59 |
| 2013 | 10.7 | 58 |
| 2012 | 10.6 | 58 |
| 2011 | 10.5 | 58 |
| 2010 | 10.4 | 57 |
| 2009 | 10.33 | 54 |
| 2008 | 10.27 | 54 |
| 2007 | 10.21 | 54 |
| 2006 | 10.16 | 54 |
| 2005 | 10.11 | 54 |
| 2004 | 10.08 | 54 |
| 2003 | 10.05 | 53 |
| 2002 | 10.02 | 54 |
| 2001 | 9.98 | 54 |
| 2000 | 9.91 | 52 |
| 1999 | 9.87 | 51 |
| 1998 | 9.81 | 50 |
| 1997 | 9.74 | 50 |
| 1996 | 9.65 | 49 |
| 1995 | 9.55 | 49 |
| 1994 | 9.47 | 48 |
| 1993 | 9.38 | 47 |
| 1992 | 9.27 | 46 |
| 1991 | 9.16 | 46 |
| 1990 | 9.05 | 46 |
| 1989 | 8.97 | 45 |
| 1988 | 8.89 | 45 |
| 1987 | 8.82 | 45 |
| 1986 | 8.73 | 45 |