| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 15.41 | 181 |
| 2015 | 15.33 | 179 |
| 2014 | 16.05 | 174 |
| 2013 | 15.47 | 176 |
| 2012 | 16.7 | 175 |
| 2011 | 17.36 | 175 |
| 2010 | 18.68 | 172 |
| 2009 | 20.22 | 171 |
| 2008 | 19.85 | 174 |
| 2007 | 19.97 | 175 |
| 2006 | 19.48 | 174 |
| 2005 | 19.09 | 176 |
| 2004 | 20.09 | 175 |
| 2003 | 18.38 | 179 |
| 2002 | 18.21 | 179 |
| 2001 | 19.17 | 177 |
| 2000 | 20.24 | 175 |
| 1999 | 20.45 | 175 |
| 1998 | 19.92 | 178 |
| 1997 | 19.94 | 177 |
| 1996 | 20.45 | 176 |
| 1995 | 20.03 | 180 |
| 1994 | 18.01 | 184 |
| 1993 | 17.21 | 185 |
| 1992 | 18.5 | 184 |
| 1991 | 20.18 | 181 |