| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 17.75 | 179 |
| 2015 | 17.58 | 179 |
| 2014 | 17.41 | 180 |
| 2013 | 17.28 | 179 |
| 2012 | 17.97 | 178 |
| 2011 | 18.03 | 178 |
| 2010 | 17.8 | 178 |
| 2009 | 17.71 | 178 |
| 2008 | 17.14 | 179 |
| 2007 | 17.46 | 179 |
| 2006 | 14.9 | 183 |
| 2005 | 14.38 | 184 |
| 2004 | 12.99 | 185 |
| 2003 | 13.96 | 184 |
| 2002 | 14.85 | 181 |
| 2001 | 13.98 | 182 |
| 2000 | 14.36 | 182 |
| 1999 | 14.1 | 182 |
| 1998 | 13.84 | 182 |
| 1997 | 13.61 | 180 |
| 1996 | 13.4 | 179 |
| 1995 | 13.27 | 179 |
| 1994 | 12.76 | 179 |
| 1993 | 12.34 | 179 |
| 1992 | 11.97 | 181 |
| 1991 | 11.35 | 183 |
| 1990 | 11.09 | 183 |