| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 13.25 | 184 |
| 2015 | 13.15 | 184 |
| 2014 | 12.98 | 184 |
| 2013 | 12.91 | 184 |
| 2012 | 12.25 | 184 |
| 2011 | 12.53 | 185 |
| 2010 | 12.16 | 185 |
| 2009 | 12.18 | 185 |
| 2008 | 12.97 | 185 |
| 2007 | 14.15 | 185 |
| 2006 | 14.87 | 184 |
| 2005 | 15.37 | 181 |
| 2004 | 16.3 | 181 |
| 2003 | 16.89 | 178 |
| 2002 | 16.65 | 178 |
| 2001 | 16.09 | 178 |
| 2000 | 15.38 | 179 |
| 1999 | 15.2 | 178 |
| 1998 | 14.98 | 177 |
| 1997 | 14.9 | 176 |
| 1996 | 15.07 | 176 |
| 1995 | 15.05 | 176 |
| 1994 | 14.89 | 176 |
| 1993 | 14.71 | 176 |
| 1992 | 14.46 | 176 |
| 1991 | 14.22 | 177 |
| 1990 | 13.71 | 177 |