| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 53.68 | 61 |
| 2015 | 53.59 | 62 |
| 2014 | 53.42 | 59 |
| 2013 | 53.08 | 61 |
| 2012 | 52.86 | 62 |
| 2011 | 52.62 | 61 |
| 2010 | 52.35 | 62 |
| 2009 | 52.22 | 63 |
| 2008 | 52.09 | 66 |
| 2007 | 51.95 | 67 |
| 2006 | 51.84 | 66 |
| 2005 | 51.78 | 63 |
| 2004 | 51.76 | 61 |
| 2003 | 51.84 | 60 |
| 2002 | 51.97 | 60 |
| 2001 | 52.1 | 60 |
| 2000 | 52.2 | 57 |
| 1999 | 52.22 | 58 |
| 1998 | 52.24 | 57 |
| 1997 | 52.25 | 54 |
| 1996 | 52.24 | 56 |
| 1995 | 52.56 | 51 |
| 1994 | 52.61 | 49 |
| 1993 | 52.49 | 49 |
| 1992 | 52.58 | 48 |
| 1991 | 52.35 | 50 |