| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 42.85 | 23 |
| 2015 | 42.3 | 23 |
| 2014 | 41.99 | 22 |
| 2013 | 41.72 | 22 |
| 2012 | 41.52 | 24 |
| 2011 | 41.41 | 23 |
| 2010 | 41.35 | 20 |
| 2009 | 41.86 | 21 |
| 2008 | 42.46 | 19 |
| 2007 | 43.12 | 21 |
| 2006 | 43.8 | 23 |
| 2005 | 44.43 | 22 |
| 2004 | 45.22 | 25 |
| 2003 | 46.02 | 28 |
| 2002 | 46.82 | 31 |
| 2001 | 47.63 | 37 |
| 2000 | 48.43 | 41 |
| 1999 | 49.45 | 45 |
| 1998 | 50.48 | 48 |
| 1997 | 51.48 | 50 |
| 1996 | 52.28 | 51 |
| 1995 | 52.69 | 51 |
| 1994 | 53.32 | 53 |
| 1993 | 53.8 | 55 |
| 1992 | 54.17 | 58 |
| 1991 | 54.51 | 58 |
| 1990 | 54.79 | 58 |
| 1989 | 54.37 | 53 |
| 1988 | 54.01 | 51 |
| 1987 | 53.8 | 48 |
| 1986 | 53.65 | 47 |