| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 42.17 | 10 |
| 2015 | 43.21 | 11 |
| 2014 | 42.89 | 15 |
| 2013 | 44.68 | 17 |
| 2012 | 44.26 | 17 |
| 2011 | 42.97 | 21 |
| 2010 | 44.56 | 19 |
| 2009 | 43.17 | 16 |
| 2008 | 44.51 | 20 |
| 2007 | 45.38 | 18 |
| 2006 | 38.99 | 34 |
| 2005 | 37.29 | 33 |
| 2004 | 37.74 | 31 |
| 2003 | 39.37 | 23 |
| 2002 | 38.6 | 26 |
| 2001 | 37.91 | 29 |
| 2000 | 35.99 | 37 |
| 1999 | 35.65 | 29 |
| 1998 | 32.9 | 41 |
| 1997 | 33.79 | 37 |
| 1996 | 33.76 | 42 |
| 1995 | 33.86 | 39 |
| 1994 | 29.96 | 64 |
| 1993 | 29.53 | 69 |
| 1992 | 27.67 | 74 |
| 1991 | 25.78 | 85 |
| 1990 | 24.85 | 86 |
| 1989 | 23.81 | 79 |
| 1988 | 23.07 | 76 |
| 1987 | 26.18 | 67 |
| 1986 | 20.11 | 77 |