| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 13.58 | 50 |
| 2015 | 13.23 | 50 |
| 2014 | 12.79 | 50 |
| 2013 | 12.35 | 50 |
| 2012 | 11.93 | 51 |
| 2011 | 11.54 | 52 |
| 2010 | 11.19 | 52 |
| 2009 | 11.02 | 53 |
| 2008 | 10.9 | 53 |
| 2007 | 10.81 | 53 |
| 2006 | 10.73 | 53 |
| 2005 | 10.65 | 52 |
| 2004 | 10.62 | 51 |
| 2003 | 10.59 | 50 |
| 2002 | 10.57 | 49 |
| 2001 | 10.57 | 48 |
| 2000 | 10.59 | 47 |
| 1999 | 10.61 | 46 |
| 1998 | 10.65 | 45 |
| 1997 | 10.71 | 44 |
| 1996 | 10.77 | 43 |
| 1995 | 10.85 | 41 |
| 1994 | 10.9 | 40 |
| 1993 | 10.97 | 38 |
| 1992 | 11.03 | 36 |
| 1991 | 11.07 | 32 |
| 1990 | 11.07 | 30 |
| 1989 | 11.03 | 29 |
| 1988 | 10.95 | 28 |
| 1987 | 10.85 | 27 |
| 1986 | 10.74 | 26 |