| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.25 | 159 |
| 2015 | 51.84 | 160 |
| 2014 | 51.38 | 163 |
| 2013 | 50.99 | 163 |
| 2012 | 50.61 | 164 |
| 2011 | 50.24 | 163 |
| 2010 | 49.86 | 164 |
| 2009 | 49.59 | 166 |
| 2008 | 49.35 | 166 |
| 2007 | 49.17 | 166 |
| 2006 | 49.07 | 166 |
| 2005 | 49.03 | 170 |
| 2004 | 48.97 | 171 |
| 2003 | 48.97 | 172 |
| 2002 | 48.98 | 171 |
| 2001 | 48.99 | 170 |
| 2000 | 48.99 | 171 |
| 1999 | 49.04 | 171 |
| 1998 | 49.12 | 171 |
| 1997 | 49.18 | 171 |
| 1996 | 49.22 | 171 |
| 1995 | 49.25 | 171 |
| 1994 | 49.23 | 171 |
| 1993 | 49.11 | 171 |
| 1992 | 48.96 | 171 |
| 1991 | 48.77 | 172 |
| 1990 | 48.56 | 172 |