| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 68.63 | 32 |
| 2015 | 68.58 | 32 |
| 2014 | 68.47 | 33 |
| 2013 | 68.74 | 32 |
| 2012 | 68.99 | 33 |
| 2011 | 69.41 | 30 |
| 2010 | 70.04 | 28 |
| 2009 | 70.4 | 26 |
| 2008 | 70.62 | 26 |
| 2007 | 70.85 | 26 |
| 2006 | 71.1 | 25 |
| 2005 | 71.03 | 25 |
| 2004 | 70.99 | 26 |
| 2003 | 70.95 | 26 |
| 2002 | 70.86 | 27 |
| 2001 | 70.49 | 27 |
| 2000 | 70.09 | 27 |
| 1999 | 69.8 | 26 |
| 1998 | 69.64 | 28 |
| 1997 | 69.07 | 27 |
| 1996 | 68.48 | 29 |
| 1995 | 68.75 | 30 |
| 1994 | 68.2 | 30 |
| 1993 | 68.34 | 32 |
| 1992 | 69.34 | 27 |
| 1991 | 70.08 | 27 |