| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 59.55 | 55 |
| 2015 | 59.45 | 55 |
| 2014 | 59.27 | 55 |
| 2013 | 59.06 | 55 |
| 2012 | 58.84 | 57 |
| 2011 | 58.58 | 59 |
| 2010 | 58.31 | 59 |
| 2009 | 58.19 | 62 |
| 2008 | 58.04 | 63 |
| 2007 | 57.89 | 63 |
| 2006 | 57.77 | 61 |
| 2005 | 57.71 | 60 |
| 2004 | 57.68 | 60 |
| 2003 | 57.77 | 58 |
| 2002 | 57.9 | 58 |
| 2001 | 58.04 | 57 |
| 2000 | 58.16 | 53 |
| 1999 | 58.19 | 56 |
| 1998 | 58.21 | 52 |
| 1997 | 58.23 | 51 |
| 1996 | 58.24 | 49 |
| 1995 | 58.25 | 49 |
| 1994 | 58.23 | 47 |
| 1993 | 58.19 | 50 |
| 1992 | 58.14 | 49 |
| 1991 | 58.1 | 53 |
| 1990 | 58.08 | 54 |