| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 67.06 | 41 |
| 2015 | 67.24 | 41 |
| 2014 | 66.54 | 41 |
| 2013 | 66.13 | 41 |
| 2012 | 65.71 | 43 |
| 2011 | 65.65 | 41 |
| 2010 | 67.02 | 39 |
| 2009 | 66.56 | 40 |
| 2008 | 65.7 | 44 |
| 2007 | 65.88 | 41 |
| 2006 | 66.31 | 38 |
| 2005 | 66.37 | 36 |
| 2004 | 66.48 | 36 |
| 2003 | 66.71 | 36 |
| 2002 | 66.58 | 35 |
| 2001 | 66.81 | 36 |
| 2000 | 67.15 | 33 |
| 1999 | 66.93 | 34 |
| 1998 | 66.87 | 35 |
| 1997 | 66.99 | 34 |
| 1996 | 67.16 | 32 |
| 1995 | 66.3 | 34 |
| 1994 | 64.76 | 40 |
| 1993 | 62.35 | 51 |
| 1992 | 60.29 | 67 |
| 1991 | 58.79 | 74 |