| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 11.47 | 57 |
| 2015 | 11.22 | 57 |
| 2014 | 11.02 | 57 |
| 2013 | 10.83 | 56 |
| 2012 | 10.66 | 57 |
| 2011 | 10.53 | 57 |
| 2010 | 10.45 | 56 |
| 2009 | 10.26 | 56 |
| 2008 | 10.15 | 56 |
| 2007 | 10.09 | 56 |
| 2006 | 10.06 | 55 |
| 2005 | 10.02 | 55 |
| 2004 | 10.03 | 55 |
| 2003 | 10.03 | 54 |
| 2002 | 10.02 | 53 |
| 2001 | 10.01 | 53 |
| 2000 | 10.01 | 51 |
| 1999 | 9.95 | 49 |
| 1998 | 9.9 | 49 |
| 1997 | 9.85 | 49 |
| 1996 | 9.8 | 48 |
| 1995 | 9.75 | 48 |
| 1994 | 9.54 | 47 |
| 1993 | 9.35 | 48 |
| 1992 | 9.18 | 48 |
| 1991 | 9.03 | 48 |
| 1990 | 8.9 | 47 |
| 1989 | 8.85 | 46 |
| 1988 | 8.78 | 46 |
| 1987 | 8.71 | 46 |
| 1986 | 8.65 | 46 |