| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 57.86 | 44 |
| 2015 | 57.9 | 45 |
| 2014 | 57.86 | 45 |
| 2013 | 57.85 | 43 |
| 2012 | 57.8 | 44 |
| 2011 | 57.75 | 43 |
| 2010 | 57.67 | 42 |
| 2009 | 57.51 | 46 |
| 2008 | 58.38 | 46 |
| 2007 | 59.27 | 39 |
| 2006 | 60.22 | 34 |
| 2005 | 61.18 | 32 |
| 2004 | 62.06 | 30 |
| 2003 | 62.92 | 28 |
| 2002 | 63.76 | 27 |
| 2001 | 64.61 | 25 |
| 2000 | 65.49 | 23 |
| 1999 | 66.35 | 20 |
| 1998 | 67.22 | 20 |
| 1997 | 68.1 | 15 |
| 1996 | 68.96 | 15 |
| 1995 | 69.79 | 15 |
| 1994 | 70.58 | 13 |
| 1993 | 71.31 | 12 |
| 1992 | 72.06 | 12 |
| 1991 | 72.79 | 11 |