| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.73 | 43 |
| 2015 | 66.02 | 42 |
| 2014 | 65.5 | 43 |
| 2013 | 65.63 | 43 |
| 2012 | 66.1 | 41 |
| 2011 | 65.5 | 43 |
| 2010 | 65.12 | 43 |
| 2009 | 63.81 | 50 |
| 2008 | 64.02 | 51 |
| 2007 | 63.77 | 51 |
| 2006 | 63.13 | 55 |
| 2005 | 61.29 | 61 |
| 2004 | 60.17 | 67 |
| 2003 | 60.14 | 63 |
| 2002 | 60.32 | 63 |
| 2001 | 62.41 | 53 |
| 2000 | 62.96 | 53 |
| 1999 | 61.71 | 55 |
| 1998 | 62.08 | 53 |
| 1997 | 63.07 | 47 |
| 1996 | 63.12 | 49 |
| 1995 | 62.14 | 50 |
| 1994 | 63.17 | 48 |
| 1993 | 62.96 | 47 |
| 1992 | 63.36 | 44 |
| 1991 | 63.98 | 43 |