| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 40.07 | 14 |
| 2015 | 39.97 | 14 |
| 2014 | 39.74 | 14 |
| 2013 | 39.56 | 14 |
| 2012 | 39.41 | 13 |
| 2011 | 39.26 | 13 |
| 2010 | 39.09 | 13 |
| 2009 | 39.33 | 13 |
| 2008 | 39.65 | 13 |
| 2007 | 40.04 | 13 |
| 2006 | 40.48 | 13 |
| 2005 | 40.95 | 14 |
| 2004 | 41.48 | 13 |
| 2003 | 42.01 | 13 |
| 2002 | 42.56 | 10 |
| 2001 | 43.19 | 10 |
| 2000 | 43.93 | 10 |
| 1999 | 44.64 | 10 |
| 1998 | 45.44 | 11 |
| 1997 | 46.33 | 14 |
| 1996 | 47.27 | 19 |
| 1995 | 48.27 | 25 |
| 1994 | 49.12 | 28 |
| 1993 | 50.02 | 31 |
| 1992 | 50.97 | 39 |
| 1991 | 52.02 | 47 |
| 1990 | 53.21 | 51 |
| 1989 | 54.88 | 56 |
| 1988 | 56.76 | 61 |
| 1987 | 58.82 | 63 |
| 1986 | 61.04 | 66 |