| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 69.65 | 30 |
| 2015 | 69.56 | 31 |
| 2014 | 69.47 | 31 |
| 2013 | 69.43 | 31 |
| 2012 | 69.34 | 30 |
| 2011 | 64.95 | 45 |
| 2010 | 66.9 | 40 |
| 2009 | 68.52 | 31 |
| 2008 | 68.95 | 30 |
| 2007 | 67.21 | 39 |
| 2006 | 66.88 | 36 |
| 2005 | 66.84 | 34 |
| 2004 | 67.13 | 34 |
| 2003 | 67.14 | 33 |
| 2002 | 69.3 | 29 |
| 2001 | 68.46 | 29 |
| 2000 | 69.04 | 29 |
| 1999 | 69.34 | 28 |
| 1998 | 69.69 | 26 |
| 1997 | 68.42 | 30 |
| 1996 | 67.26 | 31 |
| 1995 | 65.38 | 39 |
| 1994 | 64.53 | 41 |
| 1993 | 63.6 | 43 |
| 1992 | 64.01 | 39 |
| 1991 | 64.41 | 40 |