| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2015 | 41.01 | 25 |
| 2014 | 42.08 | 22 |
| 2013 | 43.91 | 25 |
| 2012 | 45.24 | 21 |
| 2011 | 45.31 | 22 |
| 2010 | 45.72 | 23 |
| 2009 | 44.3 | 24 |
| 2008 | 49.33 | 20 |
| 2007 | 42.4 | 28 |
| 2006 | 45.75 | 22 |
| 2005 | 48.56 | 19 |
| 2004 | 45.6 | 20 |
| 2003 | 44.85 | 18 |
| 2002 | 43.43 | 18 |
| 2001 | 42.83 | 20 |
| 2000 | 46.1 | 15 |
| 1999 | 47.11 | 14 |
| 1998 | 51.62 | 8 |
| 1997 | 51.27 | 8 |
| 1996 | 48.16 | 15 |
| 1995 | 48.86 | 14 |
| 1994 | 49.34 | 16 |
| 1993 | 49.05 | 15 |
| 1992 | 49.41 | 13 |
| 1991 | 51.8 | 10 |
| 1990 | 50.44 | 9 |
| 1989 | 50.01 | 9 |
| 1988 | 38.55 | 19 |
| 1987 | 31.83 | 22 |
| 1986 | 32.61 | 20 |