| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 58.68 | 39 |
| 2015 | 58.76 | 39 |
| 2014 | 58.8 | 41 |
| 2013 | 58.49 | 41 |
| 2012 | 57.98 | 43 |
| 2011 | 58.15 | 42 |
| 2010 | 57.56 | 44 |
| 2009 | 58.09 | 43 |
| 2008 | 59.08 | 42 |
| 2007 | 58.88 | 42 |
| 2006 | 58.26 | 41 |
| 2005 | 57.76 | 39 |
| 2004 | 56.5 | 45 |
| 2003 | 55.74 | 46 |
| 2002 | 55.26 | 49 |
| 2001 | 54.61 | 53 |
| 2000 | 53.37 | 53 |
| 1999 | 52.81 | 55 |
| 1998 | 52 | 58 |
| 1997 | 52.51 | 52 |
| 1996 | 52.96 | 52 |
| 1995 | 51.6 | 59 |
| 1994 | 50.2 | 61 |
| 1993 | 48.56 | 69 |
| 1992 | 48.22 | 72 |
| 1991 | 48.44 | 70 |