| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 39.4 | 129 |
| 2015 | 39.3 | 130 |
| 2014 | 39.26 | 130 |
| 2013 | 39.34 | 128 |
| 2012 | 39.46 | 127 |
| 2011 | 39.59 | 127 |
| 2010 | 39.76 | 123 |
| 2009 | 41.02 | 117 |
| 2008 | 42.3 | 105 |
| 2007 | 43.57 | 94 |
| 2006 | 44.8 | 80 |
| 2005 | 45.96 | 62 |
| 2004 | 46.04 | 60 |
| 2003 | 46.1 | 58 |
| 2002 | 46.14 | 54 |
| 2001 | 46.17 | 54 |
| 2000 | 46.2 | 52 |
| 1999 | 46.24 | 50 |
| 1998 | 46.28 | 50 |
| 1997 | 46.32 | 48 |
| 1996 | 46.35 | 46 |
| 1995 | 46.38 | 44 |
| 1994 | 46.36 | 44 |
| 1993 | 46.34 | 45 |
| 1992 | 46.51 | 42 |
| 1991 | 46.53 | 40 |
| 1990 | 46.78 | 38 |