| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 11.639 | 42 |
| 2015 | 14.233 | 33 |
| 2014 | 14.903 | 32 |
| 2013 | 15.188 | 30 |
| 2012 | 18.213 | 18 |
| 2011 | 16.146 | 27 |
| 2010 | 17.091 | 25 |
| 2009 | 19.723 | 19 |
| 2008 | 15.828 | 39 |
| 2007 | 12.798 | 68 |
| 2006 | 22.188 | 17 |
| 2005 | 24.656 | 13 |
| 2004 | 23.426 | 17 |
| 2003 | 25.583 | 14 |
| 2002 | 26.417 | 17 |
| 2001 | 23.833 | 25 |
| 2000 | 24.889 | 28 |
| 1999 | 25.737 | 33 |
| 1998 | 22.473 | 41 |
| 1997 | 22.477 | 36 |
| 1996 | 26.274 | 34 |
| 1995 | 36.695 | 22 |
| 1994 | 33.026 | 23 |
| 1993 | 30.021 | 26 |
| 1992 | 28.461 | 20 |
| 1991 | 38.876 | 10 |
| 1990 | 32.557 | 14 |
| 1989 | 29.169 | 13 |
| 1988 | 28.688 | 11 |
| 1987 | 23.823 | 14 |
| 1986 | 21.799 | 11 |