| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 20.37 | 174 |
| 2015 | 20.2 | 174 |
| 2014 | 20.03 | 175 |
| 2013 | 19.81 | 175 |
| 2012 | 19.94 | 175 |
| 2011 | 19.29 | 176 |
| 2010 | 17.95 | 177 |
| 2009 | 18.78 | 176 |
| 2008 | 18.41 | 176 |
| 2007 | 17.95 | 178 |
| 2006 | 17.58 | 178 |
| 2005 | 17.16 | 178 |
| 2004 | 16.78 | 179 |
| 2003 | 15.15 | 181 |
| 2002 | 13.63 | 184 |
| 2001 | 13.39 | 184 |
| 2000 | 13.6 | 183 |
| 1999 | 13.96 | 184 |
| 1998 | 13.44 | 184 |
| 1997 | 12.73 | 185 |
| 1996 | 12.14 | 185 |
| 1995 | 12.06 | 182 |
| 1994 | 11.97 | 181 |
| 1993 | 11.92 | 181 |
| 1992 | 11.77 | 182 |
| 1991 | 11.39 | 182 |
| 1990 | 11.67 | 181 |