| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 48.18 | 89 |
| 2015 | 47.96 | 88 |
| 2014 | 48.12 | 86 |
| 2013 | 48.72 | 80 |
| 2012 | 47.9 | 85 |
| 2011 | 48.49 | 81 |
| 2010 | 48.84 | 80 |
| 2009 | 48.58 | 82 |
| 2008 | 49.44 | 80 |
| 2007 | 49.39 | 81 |
| 2006 | 49.16 | 82 |
| 2005 | 48.59 | 80 |
| 2004 | 47.81 | 81 |
| 2003 | 47.85 | 75 |
| 2002 | 47.71 | 78 |
| 2001 | 46.74 | 82 |
| 2000 | 46.86 | 82 |
| 1999 | 47.23 | 77 |
| 1998 | 47.69 | 75 |
| 1997 | 49.1 | 66 |
| 1996 | 50.04 | 61 |
| 1995 | 51.34 | 61 |
| 1994 | 51.02 | 58 |
| 1993 | 50.55 | 57 |
| 1992 | 51.48 | 54 |
| 1991 | 51.9 | 55 |