| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 14.238 | 28 |
| 2015 | 15.329 | 29 |
| 2014 | 15.668 | 29 |
| 2013 | 15.148 | 31 |
| 2012 | 14.32 | 35 |
| 2011 | 13.233 | 47 |
| 2010 | 12.42 | 50 |
| 2009 | 14.076 | 50 |
| 2008 | 16.521 | 35 |
| 2007 | 16.843 | 33 |
| 2006 | 17.073 | 30 |
| 2005 | 18.445 | 25 |
| 2004 | 18.254 | 32 |
| 2003 | 18.231 | 33 |
| 2002 | 19.468 | 35 |
| 2001 | 16.824 | 60 |
| 2000 | 15.77 | 67 |
| 1999 | 15.236 | 74 |
| 1995 | 15.258 | 75 |
| 1994 | 14.2 | 75 |
| 1993 | 13.767 | 74 |
| 1992 | 13.658 | 66 |
| 1991 | 12.783 | 65 |
| 1990 | 12.342 | 66 |
| 1989 | 12 | 68 |
| 1988 | 12 | 58 |
| 1987 | 12 | 55 |
| 1986 | 12 | 59 |