| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 18.09 | 181 |
| 2015 | 17.82 | 181 |
| 2014 | 17.57 | 181 |
| 2013 | 17.26 | 181 |
| 2012 | 17.33 | 181 |
| 2011 | 16.55 | 181 |
| 2010 | 14.76 | 183 |
| 2009 | 15.65 | 183 |
| 2008 | 15.84 | 181 |
| 2007 | 15.16 | 183 |
| 2006 | 14.54 | 183 |
| 2005 | 14.06 | 183 |
| 2004 | 13.63 | 183 |
| 2003 | 11.97 | 185 |
| 2002 | 10.48 | 186 |
| 2001 | 10.51 | 186 |
| 2000 | 10.59 | 186 |
| 1999 | 10.77 | 186 |
| 1998 | 10.48 | 186 |
| 1997 | 10.08 | 186 |
| 1996 | 9.74 | 186 |
| 1995 | 9.69 | 186 |
| 1994 | 9.62 | 186 |
| 1993 | 9.59 | 186 |
| 1992 | 9.5 | 186 |
| 1991 | 9.28 | 186 |
| 1990 | 9.44 | 185 |