| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 69.85 | 29 |
| 2015 | 69.82 | 29 |
| 2014 | 69.8 | 29 |
| 2013 | 69.75 | 30 |
| 2012 | 69.72 | 28 |
| 2011 | 70.07 | 26 |
| 2010 | 70.39 | 27 |
| 2009 | 70.44 | 23 |
| 2008 | 70.47 | 24 |
| 2007 | 71.52 | 21 |
| 2006 | 72.55 | 18 |
| 2005 | 73.54 | 18 |
| 2004 | 73.7 | 18 |
| 2003 | 73.86 | 18 |
| 2002 | 74.02 | 18 |
| 2001 | 74.12 | 16 |
| 2000 | 74.21 | 16 |
| 1999 | 74.26 | 15 |
| 1998 | 74.31 | 13 |
| 1997 | 74.25 | 13 |
| 1996 | 74.28 | 13 |
| 1995 | 74.38 | 14 |
| 1994 | 74.42 | 14 |
| 1993 | 74.19 | 15 |
| 1992 | 74.33 | 15 |
| 1991 | 74.27 | 15 |
| 1990 | 74.24 | 16 |