| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 54.06 | 59 |
| 2015 | 53.7 | 60 |
| 2014 | 53.13 | 62 |
| 2013 | 52.83 | 63 |
| 2012 | 52.62 | 63 |
| 2011 | 52.35 | 62 |
| 2010 | 52.1 | 63 |
| 2009 | 51.98 | 66 |
| 2008 | 52.46 | 64 |
| 2007 | 52.31 | 64 |
| 2006 | 52.29 | 64 |
| 2005 | 52.28 | 60 |
| 2004 | 52.88 | 57 |
| 2003 | 53.53 | 53 |
| 2002 | 54.61 | 51 |
| 2001 | 55.7 | 46 |
| 2000 | 56.78 | 39 |
| 1999 | 57.86 | 37 |
| 1998 | 56.27 | 38 |
| 1997 | 57.25 | 36 |
| 1996 | 58.23 | 34 |
| 1995 | 59.2 | 35 |
| 1994 | 60.13 | 32 |
| 1993 | 59.76 | 33 |
| 1992 | 60.37 | 30 |
| 1991 | 60.96 | 29 |