| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 48.82 | 82 |
| 2015 | 48.72 | 83 |
| 2014 | 48.48 | 84 |
| 2013 | 48.53 | 82 |
| 2012 | 48.24 | 83 |
| 2011 | 47.19 | 90 |
| 2010 | 49.72 | 74 |
| 2009 | 48.38 | 85 |
| 2008 | 47.17 | 92 |
| 2007 | 46.01 | 97 |
| 2006 | 52.37 | 63 |
| 2005 | 51.72 | 64 |
| 2004 | 49.07 | 70 |
| 2003 | 48.97 | 68 |
| 2002 | 48.77 | 72 |
| 2001 | 47.66 | 77 |
| 2000 | 46.27 | 84 |
| 1999 | 46.42 | 82 |
| 1998 | 50.24 | 63 |
| 1997 | 48.79 | 71 |
| 1996 | 49.24 | 67 |
| 1995 | 49.14 | 65 |
| 1994 | 48.91 | 64 |
| 1993 | 49.7 | 61 |
| 1992 | 50.17 | 61 |
| 1991 | 49.94 | 61 |