| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 55.19 | 25 |
| 2015 | 54.97 | 25 |
| 2014 | 53.68 | 27 |
| 2013 | 53.56 | 27 |
| 2012 | 54.88 | 25 |
| 2011 | 57.44 | 22 |
| 2010 | 58.03 | 20 |
| 2009 | 62.41 | 16 |
| 2008 | 66.3 | 13 |
| 2007 | 65.26 | 13 |
| 2006 | 64.65 | 14 |
| 2005 | 62.5 | 17 |
| 2004 | 62.79 | 14 |
| 2003 | 59.31 | 21 |
| 2002 | 64.22 | 14 |
| 2001 | 61.93 | 17 |
| 2000 | 67.23 | 14 |
| 1999 | 66.59 | 12 |
| 1998 | 66.84 | 12 |
| 1997 | 68.24 | 12 |
| 1996 | 66.18 | 14 |
| 1995 | 66.12 | 16 |
| 1994 | 62.29 | 19 |
| 1993 | 60.44 | 22 |
| 1992 | 63.32 | 19 |
| 1991 | 65.13 | 20 |